For installations of a mechanical throttle body 1998-2004 Camaro, Firebird, Corvette 5.7L LS1 / LS6 engine with a 4L60E or T-56 transmission. These engines and transmissions were factory equipped in 1999 - 2002 Chevrolet Camaro. This harness may also be used when a throttle by wire LS1 or LS6 from a Corvette is converted to mechanical throttle. The 60509 harness includes all connections for fuel injection and transmission operation: ECM, TPS, IAC, CTS, IAT, MAF, MAP, Injectors, Coils, CMP, CKP, Knock, VSS, Transmission, Front Bank 1 & 2 O2 Sensors. Harness incorporates its own 8 circuit fuse block with ignition relays and connection to factory style fuel pump relay. The harness does not include any emissions related connections. This standard length harness allows four feet from the back of the intake manifold to where the fuse block and ECM mount. Perfect for those that plan to mount these components under the dash or in the glove box.