For installations of 1992-1997 LT1 V8 engines with 4L60E transmission using an ECM with service #16188051 or 88961150 into any vehicle. These engines and transmissions were factory equipped in Camaro, Firebird, Corvette, Roadmaster, Impala, and Caprice. Harness includes all connections needed for fuel injection and transmission operation: ECM, Ignition Module, IAT, CTS, Coil, Left & Right O2, EGR, MAP, IAC, Knock, Air Pump Relay, MAF, Fuel Pump Relay, Canister Purge Solenoid, VSS and 4L60E Transmission. Harness includes its own fuse block with ignition relays. 4 feet of harness between ECM connections and main engine breakout gives ample room for custom installation and mounting of ECM behind the dash, in the kick panel or glove box.