GM LS-1 WIRING
1997-2002 Corvette and 1998-2002 Camaro/Firebird LS-1:
First introduced in the 1997 Corvette and then available in the 1998 Camaro and Firebird, this is GM's generation III small block engine design. All aluminum block and heads, six bolt main caps, and individual ignition coils for each cylinder are just a few of the new designs implemented on this engine.
While the Camaro/Firebird and Corvette engines are similar, the Corvette version is impractical to install in most aftermarket applications. While still listed as 4L60-E (automatic) transmission (also available in manual), the transmission was moved back to the rear of the vehicle as a transaxle. The Camaro/Firebird engine version transmission still bolts direct to the engine block and is labeled a 4L60-E. The Corvette version of this engine utilizes an electric motor mounted on the throttle body (called Drive-By-Wire) utilizing various sensor inputs to control engine RPM (acceleration). Aftermarket applications require conversion to a 1998 Camaro throttle body for accelerator cable control. Cable driven speedometers used on older type transmissions (4L60/ 700R4/Turbo 350) cannot be used with this engine.
If you plan to use the Corvette engine version, it is best that it be wired as Camaro/Firebird. The engine computer for the 1998 Corvette and Camaro/Firebird are the same part number, however the Corvette computer must be reprogrammed to utilize the Camaro/Firebird programming. This engine utilizes the OBD II diagnostic system and if all emissions sensors are not utilized, trouble codes will set in a factory programmed ECM. We offer LS-1 reprogramming services. We can remove all emissions (if you are emissions exempt), reduce fan turn on temperatures, adjust for tire sizes and gear ratios, allow the removal of the mass air flow sensor and much much more. Please inquire