The General Motors G-Body is one of the manufacturer's most popular chassis, and includes cars such as Chevrolet Malibu, Monte Carlo, and El Camino; the Buick Regal, Grand National, and GNX; the Oldsmobile Cutlass Supreme; the Pontiac Grand Prix, and more. This traditional and affordable front engine/rear-wheel-drive design lends itself to common upgrades and modifications for a wide range of high-performance applications, from drag racing to road racing. Many of the vehicles GM produced using this chassis were powered by V-8 engines, and others had popular turbocharged V-6 configurations. Some of the special-edition vehicles were outfitted with exclusive performance upgrades, which can be easily adapted to other G-Body vehicles. Knowing which vehicles were equipped with which options, and how to best incorporate all the best-possible equipment is thoroughly covered in this book. A solid collection of upgrades including brakes, suspension, and the installation of GMs most popular modern engine-the LS-Series V-8-are all covered in great detail. The aftermarket support for this chassis is huge, and the interchangeability and affordability are a big reason for its popularity. It's the last mass-produced V-8/rear-drive chassis that enthusiasts can afford and readily modify. There is also great information for use when shopping for a G-Body, including what areas to be aware of or check for possible corrosion, what options to look for and what should be avoided. No other book on the performance aspects of a GM G-Body has been published until now, and this book will serve as the bible to G-Body enthusiasts for years to come.
Without a doubt, GM's LS Series engines are the hottest thing going right now. Thousands of enthusiasts are either modifying their cars factory equipped with these engines, supported by a robust aftermarket, or converting their vintage muscle cars to run with these efficient and powerful engines. Of course, with technology comes complexity. To get the maximum performance and efficiency out of any modern engine, you have to have a solid understanding of the technology involved and how to make the most of it.In How to Use and Upgrade to GM Gen III LS-Series Powertrain Control Systems, the benefits, advantages and nuances of this robust and efficient control system are thoroughly examined. Do you have a vehicle already equipped with an LS Series engine but want to do a transmission swap? Do you want to convert from a cable throttle to an electronic throttle, and make systems like cruise control integrate? Do you want to eliminate the dreaded Optispark distributor from your LT1/LT4? Perhaps convert your Gen I small-block to distributor-less ignition? Or convert to universal OBD-II diagnostics? Do you want an affordable control system to run fuel injection, ignition timing, cooling fans, air conditioning, and electronic overdrive transmissions while swapping all if this into your classic muscle car?
How to Use and Upgrade to GM Gen III LS-Series Powertrain Control Systems will cover all of these applications and more. Not only are the performance and flexibility aspects covered in great detail, but there are significant cost benefits as well. Implementing a GM Series III PCM based control system will not only afford you great flexibility and tune-ability, but it can be accomplished significantly cheaper than most aftermarket alternatives. If you are planning any of these complex swaps or just looking to thoroughly understand the nuances of modern GM control systems, this book is a vital addition to your technical library.
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
If you are planning any of these complex swaps or just looking to thoroughly understand the nuances of modern GM control systems, How to use GM Gen III LS-Series Powertrain Control Systems is a vital addition to your technical library.
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