Diagnostic Strategies Of Modern Automotive Systems
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This section gives an in depth look at the many actuators and solenoids that make up a modern automotive system. In this book, we'll explore the different actuators' theory of operation, as well as practical testing procedures that will make diagnosing them a lot easier. Additionally, the operation of the basic emission components is also covered. Be patient and take your time in absorbing the information. Hopefully this will make for a great bedside reading. Enjoy and broaden your mind. This work has been a labor of love. It is meant to compliment and broaden the working knowledge of the modern automotive technician. No theoretical information is given, except under certain explanatory circumstances and sections. But most of all, this book was done for you, “The Lone Automotive Mechanic or Technician”. The guy (or girl in some cases) who works all day long and studies at night to further his/her career in spite of the stress of the day, the guy who's not appreciated for what he does because to the rest of the world he's the dirty mechanic that doesn't know better, the guy who spends thousands of dollars in tools and equipment but that nobody has any idea that he did, and the guy who in spite of all the drawbacks of our profession is happy at what he does and keeps America rolling. This work was done for you. I hope you enjoy and learn from it. Remember, no matter what happens, keep building your knowledge and it'll pay-off in the end.Edition 4.0 Section 2– Actuators and EVAP Testing, Copyright 2004, 2011, All rights reserved. Section 2 Table of Contents * Leak detection pump – (LDP Operation, LDP solenoid, reed switch and related vacuum hoses, analysis of the LDP, conditions that affect the LDP, EVAP system leak, ELECTRICAL TESTS, scanner test, solenoid tests, reed tests, MECHANICAL TESTS) * Fuel injector troubleshooting strategy – (Fuel Injector Operation, correct fuel flow and spray pattern, ground controlled, Injector drivers, saturation and the peak-and-hold type driver, ground or positive controlled, injector cut-off routine, injector waveform analysis, high impedance injector, low impedance injectors, conditions that affect injectors, injector testing, current waveform capture, injector ground test, clogged injector tests) * GM (CS series) alternator repair strategy – (CS alternators operation, different types of alternators, principle of induction, series of diodes, Terminals L, P, F and S, conditions that affect operation, chargeoutput wire tests, alternator testing, L-terminal test, ground test, positive test, using the test light and volt-meter) * Idle Air Control (IAC) Troubleshooting – (IAC operation, IAC stepper motor, pre-programmed desired idle speed, IAC scanner count, duty cycle controlled, regular DC motor IAC, NOSE SWITCH or THROTTLE SWITCH, coolant temperature activated IAC, coolant temperature activated type, IAC testing, using the scan tool and IAC actuator to test, PID tests)* EGR System Troubleshooting Strategy – (EGR theory of operation, coolant temperature activated type, exhaust backpressure sensing, EGR temperature sensing, EGR valve lift position sensing, and MAP/O2 sensor feedback sensing, Ford DPFE sensor, Ref. High and Ref. Low Signal, direct method of EGR monitoring, EGR testing, scanner, multi-meter and vacuum testing, EGR boost sensor, electrical wiring/connector/ECM tests) * EVAP System Diagnostics – (EVAP theory of operation, charcoal canister, supporting fuel vapor hoses, and EVAP purge valve, integration with the ECM, FUEL TRIMS, needed to detect a 0.040” fuel leak, solenoid, LDP type and Reed EVAP sensor, LDP EVAP diagnostics system, LDP diaphragm pump, solenoid based EVAP, closing the vent solenoid, EVAP vacuum switch, condition that affect EVAP operation, cracked vapor hoses, defective fuel tank cap, faulty seals and sensors, broken fuel tank, leaky purge valve, EVAP smoke machine, EVAP Nitrogen test)
Author : Mandy Concepcion
Genre : Transportation
File Size : 34.7 MB
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Automotive Repair Case Studies (Diagnostic Strategies of Modern Automotive Systems) By Mandy Concepcion In this section, we'll take a look at automotive diagnostics in action. An effort has been made to look at problems in different ways, in each of the examples. Although there are many ways to perform the same task, the idea here is to show the technician or avid DIY mechanic the different ways to go about diagnosing automobiles. Special attention is given to specific systems and different makes and models. The different real life diagnostic cases are explained from narrated perspective to make learning easier. Hopefully you find this section enlightening and productive. Enjoy your readings. Table of Contents * - Audi data bus signal recognition (exposes the intricacies of diagnosing vehicle networks and how computers talk to each other.) * - Cadi idle re-learn (explains the importance of module re-learn procedure, which is done by re-adapting the ECM to a new sensor.) * - Case of the EVAPs (these emission systems are difficult to diagnose, due to their complexities.) * - Computer Data Lines (scan tools talk to the different engine modules or computers through the data line or bus. See how to diagnose this type of problem.) * - Faulty EGR operation (the EGR is in charge of lowering combustion temperatures. But issue with this system can cause pinging, performance, misfire and countless other issues.) * - Lean (dirty) MAF (the lean condition comprises about 60% of all engine performance issues. Learn to deal with this situation.) * - The case of the low volume (Fuel pumps deliver both pressure and volume. If one of these is missing then the engine has problems.) * - Unsynchronized CAM & CRK signals (CAM and CRK signal synchronization is needed for the engine to start.) * - Wrong MAP reading (The manifold air pressure is a main input to the ECM. See how this sensor creates havoc with the engine.) * - The Cadi's dual crank affair (this Cadillac's engine control system has dual crank sensors. Learn to diagnose these systems.) * - Analytical misfire code (Misfires are difficult to diagnose and this case shows precisely that.) * - The misfire ghost (A case of hard to find misfire.)
Automotive Vehicle Strategies and ECM Modes(Diagnostic Strategies of Modern Automotive Systems)By Mandy ConcepcionThis book is divided into two sections, “Vehicle Operational Strategies”, which detail what's needed for and engine to start. In other words, this section concentrates on the signals needed for a particular manufacturer to make the engine run. These signal strategies are true regardless of the system and the section simply zeros in on the actual signal, whether it's a distributor, DIS, COP, etc. The second section is the "ECM operational modes" and goes into details on why and how the ECM does what it needs to do to run the engine. In other words, this section has to do with the behavior of the ECM according to outside conditions.VEHICLE OPERATIONAL STRATEGIESThis section is designed to serve as a functional guide to some of the more difficult to diagnose faults. It basically came about from the trial and error experimentation with different systems, during the diagnostic process. It is not a study section per se, but will definitelyenlighten the technician as to the logics of different systems on the market today. Hopefully, it will serve to pinpoint the source of an actual problem.ECM OPERATIONAL MODES In this section, we'll take a look at automotive OPERATIONAL MODES. The section deals with the specifics of internal ECM programming strategies. The knowledge gained here will aide the modern technician is deciphering why is the ECM functioning in a specific way. This section, as in other parts of this book, helps to answer the technician's diagnostic basic question “What is the ECM seeing, that's causing it to do what it does?”Table of ContentsVEHICLE OPERATIONAL STRATEGIES- HONDA IGNITION & INJECTION STRATEGY- MAZDA IGNITION STRATEGY- MAZDA EEC IV IGNITION STRATEGY- MITSUBISHI/HYUNDAI IGNITION STRATEGY- NISSAN IGNITION STRATEGY- NISSAN COP IGNITION STRATEGY- TOYOTA IGNITION STRATEGYECM OPERATIONAL MODES• CRANKING ENRICHMENT MODE• ENGINE WARM-UP MODE• OPEN-LOOP MODE• CLOSE-LOOP MODE• ACCELERATION ENRICHMENT MODE• DECELERATION ENLEANMENT MODE• IDLE SPEED CONTROL MODE• LOW VOLTAGE CORRECTION MODE• CLEAR FLOOD MODE• SELECTIVE FUEL INJECTOR CUT-OFF MODE• LIMP-HOME MODE• EXHAUST VARIABLE VALVE TIMING/EGR CONTROL MODE
Techniques on Using Automotive Diagnostic Equipment (Diagnostic Strategies of Modern Automotive Systems) By Mandy Concepcion This "Tools and Equipment" (Techniques on Using Automotive Diagnostic Equipment) book serves as a basic primer for any future equipment purchasing decisions, as well as operating and learning the use of these advanced gadgets. An effort was made to cover some of the OEM (Dealer) tools available today. Furthermore, detailed operational explanations were presented so as to introduce and explain the intricacies of each tool. Emphasis was also placed on module re-flashing or reprogramming, since it is becoming an integral part of automotive repair. This section was produced without the sponsoring of anyone company and any opinion expressed by the author is totally unbiased. Table of Contents Techniques on Using Automotive Diagnostic Equipment (A Tool and Equipment Section) * Introduction * TEST LIGHT * POWER PROBE * DIGITAL MULTIMETER * AMP-PROBE (Low & High Current) * SOUND (Tone) SIGNAL TRACER * IAC ACTUATOR * IR (Infra-Red) THERMOMETER * SCAN TOOLS * OEM SCANNERS: * DRB III, * TECH-2, * NGS, * I-PRO (Hi Scan), * Vehicle Reflashing (Re-Programming), * Off-Board Re-programming and Re-FLashing * OSCILLOSCOPES, DSO, Fulke
Automotive Computer Network Repair (Diagnostic Strategies of Modern Automotive Systems) By Mandy Concepcion In this book we will cover the intricacies of automotive inter-module communication systems or networks. The scope of this section will also go beyond the normal needs of an automotive technician. Hence, this will probably be the most difficult part of this series to comprehend. Be patient and open minded. Always give yourself time to absorb the knowledge and do not be discouraged. Special emphasis will be placed on the CAN system (Controller Area Network), since it is now the standard. CAN is one of the 9 OBD-2 protocols. A protocol is an agreement on communications interchange. It is in essence a computer communication language and specifies signaling, wiring, size of cables used, who controls the network and voltage levels. Various protocols were used in the past, some proprietary and some generic such as ISO 9141 and SAE 1850 VPW, but the standard is now the CAN protocol. Virtually all vehicle networks now talk to each other though the CAN protocol. It is now common place to see the seat belt, SRS-Airbag, transmission, ABS-Brakes, engine and radio modules or computer talking to each other through the network. Ever wondered why your radio volume goes up when you accelerate the vehicle? That's the engine computer or module telling the radio to raise the volume due to a higher RPM and hence higher ambient noise. It is also common to see a non-shifting transmission due to a faulty network and the issue not being related to the transmission at all. Hopefully this book will shed some light on the operation and knowledge needed to tackle automotive networks in today's vehicles...... Enjoy. Table of Contents 1. INTRODUCTION * - Automotive inter-module communication systems or networks * - Asian, Domestics and European Vehicles * - Fully Networked vehicles. 2. THE NEED FOR IN-VEHICLE NETWORKING * - Use of electrical and electronic components * - Networked automotive sensors. * - Sharing of sensor information * - Weight savings and the simpler wiring harnesses * - Networking and modular systems 3. THE NEED FOR PROTOCOLS * - CAN or Controller Area Network communication protocol * - CLASS A - Low speed * - CLASS B - Medium speed * - CLASS C - High speed * - SAE (Society of Automotive Engineers) * - ISO (International Standards Organization) * - What is a Gateway? 4. NETWORKING ESSENTIALS * - the 7-layer ISO/OSI reference model * - PHYSICAL LAYER * - DATA LINK LAYER * - APPLICATION LAYER * - Medium Access * - CARRIER SENSE MULTIPLE ACCESS or CSMA * - Network latency * - The Topology of a network * - The STAR topology * - The BUS topology * - The TREE topology * - The RING topology 5. DIFFERENT COMMUNICATION NETWORK * - The CCD data bus (Chrysler Collision Detection) * - CCD bus ground * - CCD bus bias voltage * - OEM scan tool (DRB III) * - NO TERMINATION message fault * - The PCI bus (Programmable Communications Interface) * - A CSMA/CD media access scheme * - The Header, DATA, CRC, IFR and EOF elements * - DCL (Data Communications Link) * - circuit 914 and 915 * - SCP (J1850) (Standard Corporate Protocol) * - Dual wire twisted pair bus topology * - The ISO 9141 protocol * - The NGS "DATA LINK DIAGNOSTICS" menu option * - GM (Data Line) UART Serial Communications * - UART data line communications * - GM CLASS 2 data bus * - State of health messages * - The Tech-2 scanner has a dynamic menu configuration * - The Tech-2's PING-ALL-MODULES 6. CAN (Controller Area Network) * - implementation of the CAN protocol * - 11 bit and 29 bit identifyer * - EPA approved for MY 2003 and up * - CAN A, B and C * - MID and PID CAN identifyers * - Master time-keeper-node * - Drive-by-wire systems * - Byteflight, Flexray, and Time-triggered CAN or TTCAN * - The CAN Data-Frame * - The CAN bus-access arbitration * - SOF (start-of-frame) bit * - Control bit * - Arbitration bits * - Data bits * - EOF or end of frame bit
This work has been a labor of love. It is meant to compliment and broaden the working knowledge of the modern automotive technician. No theoretical information is given, except under certain explanatory circumstances and sections. This book is totally based on actual working conditions and real life diagnostics. With that intent, special thanks are given to Mr. Gino Ferrulli for his incredible patience and understanding. This book, including waveform captures and photographs would have been impossible to acquire and assemble without his help. My gratitude to him and his family for putting up with me throughout the almost three years that took to make the book. Special thanks are also given to Ms. Maria Ferrulli and Ms. Caroline Torres for their invaluable help in amending and correcting the information contained here. I couldn't have done it without their help. And last, but not least, thanks to my family for their support and encouragement. I really needed it at times. The family is the basis for all societies. But most of all, this book was done for you, "The Lone Automotive Mechanic or Technician." The guy (or girl in some cases) who works all day long and studies at night to further his/her career in spite of the stress of the day, the guy who's not appreciated for what he does because to the rest of the world he's the dirty mechanic that doesn't know better, the guy who spends thousands of dollars in tools and equipment but that nobody has any idea that he did, and the guy who in spite of all the drawbacks of our profession is happy at what he does and keeps America rolling. This work was done for you. I hope you enjoy and learn from it. Remember, no matter what happens keep building your knowledge and it'll pay-off in the end. Edition 4.0, Copyright 2004, 2011, All rights reserved Table of Content COMPONENT STRATEGIES (Sections 1) Section 1-1 (sensors) 1) O2 Sensor - O2 Sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 2) APP (accelerator Pedal Position Sensor) - APP, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 3) CAM & CRK sensor - CAM & CRK, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 4) ECT (Engine Coolant Temperature Sensor) - ECT, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 5) IAT (Intake Air Temperature Sensor) - IAT, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 6) Knock Sensor (Detonation) - Knock Sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 7) MAF (Mass Air Flow Sensor) - MAF, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 8) MAP (Manifold Air Pressure Sensor) - MAP, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 9) TPS (Throttle Position Sensor) - TPS, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 10) VSS (Vehicle Speed Sensor) - VSS, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 11) A/C Pressure Sensor - A/C Press. Sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 12) FRP (Fuel Rail Pressure Sensor) - FRP sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 13) PFS (Evap Purge Flow Sensor) - PFS, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures 14) AFR (Air Fuel or Wide Range Air Fuel Sensors) - AFR sensor, Theory of Operation, Conditions that Affect Operation, Component Testing Procedures NOTES
Automotive Scan Tool PID Diagnostics (Diagnostics Strategies of Modern Automotive Systems ) By Mandy Concepcion In this section, the different techniques of scan tool parameter (PID) analysis will be exposed. Techniques involving PID analysis are quickly catching on, due to their speed and accuracy. By properly analyzing the different scanner PIDs, the technician can arrive at the source of the problem much faster and accurately. These procedures give rise to the new term “driver seat diagnostics”, since most of the preliminary diagnostic work is done through the scanner. However, these techniques will in no way replace the final manual tests that are a part of every diagnostic path. They are simply geared to point the technician in the right direction. Table of Contents INTRODUCTION (Introduction to scan tool diagnostics and the relevance of using PIDs or scanner parameter to perform the first leg of all diagnostics.) - Theory of Operation Behind the Different PIDs (Describes CARB, the difference between generic and enhanced PIDs, the FTP) - OBD II Generic PIDs (PID calculated and actual values, calculated data relationships, base injection timing, ECM value substitution) - OBD I & II General PID analysis (erasing code-or not, recording, analyzing and pinpoint tests, separating PIDs into groups) - Fuel Delivery Fault Detection (fuel delivery issues, intake air temp. sensor, BARO sensor, Engine LOAD, RPM PID, Short-Term Fuel Trims, Long-Term Fuel Trims, 60% of check engine light issues, block learn/integrators, Example 1: injector fault, Example 2: intake gasket issues, fuel status, ignition timing, MAP/MAF, TPS, O2 sensor, IAC, Closed Throttle, injector pulse width, voltage power, injector dutycycle, fuel trim cell) - Test #1 (Determining an engine’s fuel Consumption (rich-lean operation, duty-cycle to fuel trim relationship, O2 sensor to fuel trim relation, FT and vacuum leaks, ignition timing and idle control, test conclusion) - Test # 2 (Misfire Detection Strategy, EGR, Ignition and Mechanical misfires) (misfires and OBD2, scanner misfire detection – a time saver, OBD2 40 and 80 cycle misfire, ignition, injector and EGR density misfire, coil-on-plug, misfires and O2 sensor, lean O2 & Secondary misfire, O2 sensor & injector misfires, leaky injector, EGR and the MAP, Type A, B, C misfires, test conclusion) - Test # 3 (Air/Fuel Ratio Faults) (air-fuel imbalance, MAF and post O2 sensors, open-closed-loop, fuel enable, HC & CO relation to AF issues, test conclusion) - Test # 4 (BARO, MAP & MAF PID analysis) (MAP & valve timing faults, ECM behavior, fuel delivery or duty cycle test, volumetric efficiency, , test conclusion) - Test # 5 (Clogged exhaust) (clogged catalytic converter detection, TPS, MAF and converters, idle and WOT or wide open throttle values, vacuum readings, MAP to WOT chats analysis, engine and MAP vacuum, test conclusion) - Test # 6 (EGR Fault Detection) (EGR and MAP values, ECM reaction to EGR issues, EGR temp sensor, DPFE sensor, EGR and O2-MAP and lift position sensor, EGR and engine pre-loading, EGR and the ECM erroneous high LOAD issues, test conclusion) - Test # 7 (O2 Sensor Heater) (O2 heaters and why?, tough to check O2 heater issues, O2 heater effect on signal output, O2 heater bias voltage, engine off and O2 changing value, test conclusion) - Test # 8 (Resetting Fuel Trims) (resetting injection pulse corrections, long-term and short-term fuel trims, learn condition, Lambda, case study on fuel trims, FT resetting according to manufacturer, test conclusion) - Test # 9 (Engine Cranking Vacuum Test) (MAP/MAF cranking vacuum, vacuum to PID analysis, vacuum leaks, gauge-PID test, sources of leaks, cranking values, test conclusion)
Author : Nicholas Goodnight
ISBN : 9781284102062
Genre : Transportation
File Size : 80.11 MB
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Automotive Engine Performance, published as part of the CDX Master Automotive Technician Series, provides technicians in training with a detailed overview of modern engine technologies and diagnostic strategies. Taking a "strategy-based diagnostic" approach, it helps students master the skills needed to diagnose and resolve customer concerns correctly on the first attempt. Students will gain an understanding of current diagnostic tools and advanced performance systems as they prepare to service the engines of tomorrow.
Author : James E. Duffy
ISBN : 1590709632
Genre : Technology & Engineering
File Size : 32.59 MB
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"Modern Automotive Technology details the construction, operation, diagnosis, service, and repair of late-model automobiles and light trucks. This comprehensive textbook uses a building-block approach that starts with the fundamental principles of system operation and progresses gradually to complex diagnostic and service procedures. This newly revised text provides thorough coverage of the latest developments in the automotive field, including hybrid drive systems, computer network communication, and tire pressure monitoring systems. Organized around the eight ASE automobile test areas, Modern Automotive Technology is a valuable resource for students preparing for a career in automotive technology, as well as experienced technicians who are preparing for the ASE certification tests. The Instructor's Manual provides numerous instructional resources that support each chapter of the textbook including teaching strategies, test masters, answer keys, introductory activities, reproducible masters, and additional resources. All of the resources for teaching each chapter are conveniently grouped together."--From publisher description.
The role of the modern automotive technician has changed drastically in the past decade. The job of today's vehicle specialist involves a deep knowledge of a wide variety of technical disciplines. Few professions encompass such a diverse understanding of technology. The automotive technician is now expected to know about chemistry, electronics, mechanics, optics, as well as posses a deep analytical mind. The last only comes with time and experience. Advanced HYBRID Vehicle Systems (vol 1), Including Toyota & Honda models By Mandy Concepcion Table of Contents CHAPTER 1 (Hybrid Basics and Safety Procedures) The Need for Hybrid Systems Hybrid Do's and Dont's Here are some definite do's Hybrid basics and safety procedures Hybrid power down procedure and deactivation High voltage measurement and equipment Humidity and high-voltage CHAPTER 2 (Hybrid Aerodynamics and Low Friction Tires) Low friction components and non-belt driven coolant pump, and air conditioning compressor The AC system EPS system, or electric power steering Replacement of the actual electric motor Performing a zero rest procedure CHAPTER 3 (Advanced Electronics for Hybrids) The dangers of amperage and High Current Circuits Current measurements using an electromagnetic probe (clamp on) Voltage measurement on hybrid vehicles (advanced concepts) Measure the high voltage circuit at the orange cables after a power down procedure The Dropping Resistors CHAPTER 4 (Basic Electric Motor and Power Generation) Principle of Induction Electric Motors and Electric Alternating Current The DC Electric Motor The AC Electric Motor Important facts about electric hybrid motor generator units Typical hybrid motor generator Dangers of Inverter Internal Capacitors Motor Commutation Plates Hybrid Motor Position Sensor Motor control techniques Difference between a hybrid vehicle electrical motor and a regular AC motor The TRIAC and IGBT (Isolated Gate Bipolar Transistor) Hybrid Regenerative Breaking CHAPTER 5 (AC and DC Power Units of Measurements) Frequency measurements Phase Measurement Voltage Measurements Using a Clamp-On AMP Probe The 3 Phases of a HYBRID Motor (U, V, W) The Inverter Unit on the Prius DC Brushless Motors CHAPTER 6 (basic battery technology) The nickel metal hydride battery The lithium ion battery Toyota Prius high Voltage battery Ultra-Capacitors V R L A or variable regulation lead acid battery CHAPTER 7 (The 6 Hybrid Modes of Operation) HYBRID Computer System Control Light Acceleration Mode Regenerative Breaking Mode Deceleration Mode Normal Driving Mode STOP Mode M1's Biggest Contribution to the HYBRID Unit CHAPTER 8 (Parallel and Series Hybrid Systems) Series hybrid system Series, parallel, and series/parallel hybrid Inverter Power Management Parallel hybrid system Parallel/Series hybrid system Toyota motor Co. and AISIN CHAPTER 9 (The Prius CVT or continuously variable transmission) THS or hybrid synergy Drive Transmission Planetary Gears Key point to understanding the way this transmission works HONDA CVT Transmission Honda's Cylinder Deactivation Honda's Electric Balancing CHAPTER 10 (Toyota specific hybrid system) Specific concepts on the Toyota hybrid Problems with the Coolant Pump Gas Tank Rubber Bladder Car Off AC System The Scanner and the HYBRID System High Voltage Battery MG1 and MG2 Power Output The Toyota auxiliary 12 V battery How to Jump Start a HYBRID A Word About Toyota's Keyless Entry Dangers of Electric Mode Driving CHAPTER 11 (Honda specific hybrid system) The Honda hybrid system is vastly different than that of Toyota HONDA Hybrid is a Simple Design IMA or integrated motor assist The Motor Generator Unit The 12 volt Starter Honda Electronic Balancing The 1.3L Engine Soft iridium spark plugs Honda Civic Complete Cylinder Deactivation
TODAY'S TECHNICIAN: AUTOMOTIVE BRAKE SYSTEMS, 5E provides comprehensive coverage of the theory and repair procedures related to automotive brakes. Your students will benefit from this book's two-volume approach: a Classroom Manual that details the theories and application of the total brake system, sub-system, and components, combined with a corresponding Shop Manual that provides real-world symptoms, diagnostics, and repair information about these systems. This book includes updated information on the latest materials used in brake systems as well as the latest information on current electronics. In addition, there is expanded coverage of electric braking systems that is general enough not to distract your students with highly detailed, manufacturer-specific information. The ASE Challenge questions at the end of each chapter of the Shop Manual and a Practice Exam in the Appendix will prepare your students for the ASE (A5) certification exam. TODAY'S TECHNICIAN: AUTOMOTIVE BRAKE SYSTEMS, 5E, offers your students all the information they need to understand, diagnose, and repair most problems that might occur with today's brake systems. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.
Author : C. Nwagboso
ISBN : 0412458802
Genre : Technology & Engineering
File Size : 48.43 MB
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The rapidly growing need for mobility has brought with it a major challenge for improvement in the operation and utilization of automotive systems. The economical, environmental and safety constraints imposed by the increase in the number of road vehicles and subsequent government policies also require substantial product development through the application of infor mation technology. This involves the enhancement of vehicle informatics and telematic systems with additional sensors and systems. The advance in the design and development of automotive sensory systems is so rapid that there is urgent need for the experts involved in the technology to work together to provide a reference book for the engineer of today and tomorrow. This motivated me to spend two years researching the topics and the basis on which such a book should be written. The result is the present compilation of the work of international experts on the state-of-the-art in the field of automotive sensory systems. Thus, a unique collection has been created for the reference of all those concerned with, or interested in, the design and development of modern, safe and intelligent vehicles. Although this book is intended for engineers, managers, scientists, academicians and policy makers, students should also find it valuable. To meet the requirements of students the basics are explained in simple terms; however, it is hoped that others will appreciate this approach, since most of us are well aware that gaps remain in our knowledge of the elements of our profession.
In the early part of the 21st century, we find our lives intertwined with a maze of technological wonders. From cell-phones to personal computers, no human being today can escape it. Automobiles are no exception to this rule. With the ever changing emission laws of today, the one constant in the automotive industry is that things always change and will continue to do so. OBD II was designed from the beginning to do so as well. Late model vehicle systems are much more demanding, in both the amount of technology they posses and in the knowledge necessary to repair them. This work was designed to just that, a step-by step diagnostic approach to OBD II systems. It is also written with the State Inspections in mind. This is in direct response to the increasing adoption of OBD II inspections by most States throughout the country. OBD II repair don’t have to be difficult or cumbersome and knowledge is the key to successful OBD II diagnostics and repair. About the Author Mandy Concepcion has worked in the automotive field for over 21 years. He holds a Degree in Applied Electronics Engineering as well as an ASE Master & L1 certification. For the past 16 years he has been exclusively involved in the diagnosis of all the different electronic systems found in today's vehicles. It is here where he draws extensive practical knowledge from his experience and hopes to convey it in his books. Mandy also designs and builds his own diagnostic equipment, DVD-Videos and repair software. Edition 4.0, Table of Contents, Copyright 2004, 2011, All rights reserved TABLE OF CONTENTS Section 1 - Basics of OBD II - What is OBD II? - Why do we need it? The Federal Test Procedure (FTP) - Technical aspects of OBD II. (FF, Monitors, Pending & Current Codes, The Drive Cycle, Re-setting Monitors, etc) - The data link connector - Diagnostic Trouble Code implementation - Resetting Monitors - What are Freeze Frames and how are they useful in diagnostics - A word about misfires - Do I need an OEM scanner or can I get by with an aftermarket scan tool? - Generic vs. Enhanced. What's the difference? why do you need to pull-out both codes? - The vehicle failed OBD II-State Inspection, but is passing a 5 gas emissions test. Why is it? - Resetting fuel trims. It’s not the same procedure for every system - The Diagnostic Executive or Task Manager. What is it? - Bi-Directional control capabilities are revolutionizing the diagnostic process - Diagnosing EVAP leaks. It doesn’t have to be complicated Section 2 - Base-lining the system includes retrieving FF, codes, & monitor status - Freeze Frames information gathering - Monitor status flag - Code Setting Criteria. How and why was the code set? - Freeze Frame and Code Setting Criteria comparison - Dividing the diagnostic process into systems and using the codes to detect system faults - First rule of diagnostics—Know the system you’re working on - System by System outlook - Which Monitors are Incomplete. The need to prove each system without having to run a drive cycle by using the scanner, saving time & money - General Idle PID Snap-Shot Section 3 - INTRODUCTION - OBD-2 Generic PID list - OBD I and OBD II, and general PID analysis - FUEL DELIVERY FAULT DETECTION - TEST # 1 - TEST #2 - TEST #3 - TEST #4 - TEST #5 - RUNNING THE MONITORS IN YOUR MIND USING THE SCANNER Section 4 - Putting it all together. - Principles of diagnostics - Basic Scope Testing and Bi-Directional Control - No-Start, General Diagnostics - The correct decision making process to a sound repair - Don't assume anything or get caught in a particular mind set - Taking all the facts into account
This book describes the discusses advanced fuels and combustion, emission control techniques, after-treatment systems, simulations and fault diagnostics, including discussions on different engine diagnostic techniques such as particle image velocimetry (PIV), phase Doppler interferometry (PDI), laser ignition. This volume bridges the gap between basic concepts and advanced research in internal combustion engine diagnostics, making it a useful reference for both students and researchers whose work focuses on achieving higher fuel efficiency and lowering emissions.
Author : Christopher O. Nwagboso
ISBN : STANFORD:36105022342096
Genre : Technology & Engineering
File Size : 27.1 MB
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This book explores the technical advances in vehicle and infrastructure systems that are taking place in response to the increasing congestion of our roads. It describes all the relevant computer and control techniques and takes an applications-oriented approach to fill the many gaps that exist in the mass knowledge in the field.