How to Use and Upgrade to GM Gen III LS-Series Powertrain Control Systems

by Mike Noonan

Overview

Not only are the performance and flexibility aspects of engine swaps covered in great detail, but there are significant cost benefits as well. This is the first book to thoroughly explain the GM LS-Series Gen III PCM and how they can be efficiently used, and contains key information helpful to people swapping LS Series engines into older musclecars.

Product Details

ISBN-13:	9781613251225
Publisher:	S-A Design
Publication date:	08/15/2013
Series:	NONE
Sold by:	Barnes & Noble
Format:	eBook
Pages:	144
File size:	32 MB
Note:	This product may take a few minutes to download.

About the Author

Mike Noonan is founder and owner of EFI Connection- a business that specializes in GM LS-Series electronic conversions, updates, custom tuning and wiring solutions. He is one of the nations premier experts on GM LS-Series engine electronics. His products have been featured in several magazines.

Table of Contents

Acknowledgments 4
About the Author 5
Introduction 5
Chapter 1: Understanding the Small-Block Generations 9
Generation I, with Multi-Port Fuel Injection 9
Generation II, 1992–1997 LT1 and 1996–1997 LT4 12
Generation III, 1997–2007 LS Series 12
Generation IV, LS Series 12
Chapter 2: Comparing Gen III Controllers 13
Tuned Port Injection ECMs 13
Generation III Powertrain Control Modules 14
Throttle Actuator Control Modules 17
Chapter 3: Crankshaft and Camshaft Signals and Ignition Systems 19
High-Resolution Crankshaft Signal 19
Low-Resolution Crankshaft Signal 22
Chapter 4: Tuning Software and Equipment 24
GM Tuning 24
Custom Tuning and Data Acquisition 25
Handheld Tuners 29
Tuning Equipment 30
Chapter 5: Sensors and Inputs 33
Throttle Position Sensor 33
Idle Air Control Valve 35
Engine Coolant Temperature Sensor 36
Air Temperature Sensor 37
Mass Airflow Sensor 38
Manifold Absolute Pressure Sensor 40
Knock Sensor 41
Oxygen Sensor 43
Oil Pressure Sensor 44
Vehicle Speed Sensor 44
Camshaft Position Sensor 45
Crankshaft Position Sensor 46
Accelerator Pedal Position Sensor 49
Park/Neutral Indicator 49
Gear Select Switch 49
Brake Switch 50
Clutch Pedal Position Switch 50
Fuel Enable Control 51
Chapter 6: PCM Signal Outputs 55
Engine Control Output 55
Fuel Pump Relay Control 57
Malfunction Indicator Lamp Control 57
Tachometer Output 59
Vehicle Speed Output 59
Electric Fan Control 59
Air Conditioning Control 59
Generator Control 60
Emissions Control 62
Skip Shift Solenoid Control 64
Reverse-Inhibit Solenoid Control 64
Transmission Control 64
Serial Data Output 65
Chapter 7: Changing the Firing Order 66
Injectors and Ignition Coils 66
Modifying Calibration 68
Chapter 8: Electronic Throttle Equipment 71
1997–2004 Corvette 71
2004–2005 Cadillac CTS-V 74
GM Truck 75
EFI Connection 24x Throttle Body Assemblies 80
Chapter 9: Electric Fan Operation 82
Air Conditioning Considerations 82
PCM Calibration 82
Camaro, Firebird and Corvette 83
Trucks 84
PCM Operation 84
Chapter 10: Transmission 85
Automatic Transmissions 85
Manual Transmissions 89
Chapter 11: Air Conditioning 91
Base Calibration 91
Operation Overview 91
PCM Conversion Recommendations 96
Chapter 12: Cruise Control 97
Cable Throttle Systems 97
Electronic Throttle Systems 102
Chapter 13: Wire Harness Selection 103
Used Wire Harnesses 103
New Wire Harnesses 105
Chapter 14: On-Board Diagnostics and Troubleshooting 107
Assembly Line Diagnostic Link 107
OBD-I System 107
OBD-1.5 System 108
OBD-II System 109
Troubleshooting Diagnostic Trouble Codes 111
Chapter 15: Gen III LS PCM Conversions 112
Project 1: 24x Small-Block Chevy in a 1933 Willys 112
Project 2: Twin-Turbo Small-Block Chevy in a 1998 GMC Truck 118
Project 3: Turbo 4.3L V-6 3x Conversion 122
Project 4: 24x LT1 Conversion to Eliminate Optispark in an F-Body 126
Project 5: Big-Block Ram Jet 502 24x Conversion 136
Glossary 142
Source Guide 144