Wiring Harness Information - LT1 Swap 1998 to 2002 Camaro/Firebird harness Wiring Info-New PCM Pinout info specific to 98, 99-02 F-body. 3/30/2013. 2004 Pontiac GTO Wiring Harness Info - Wiring harness info specific to the 2004 GTO LS1. wwwarness - Adam will rework most LS1, Vortec Truck, and F-Body LT1 Harnesses2007-2009 Vortec Harness · AFM Delete · Vortec 8 Info · Interesting Photo's I've Found LT1 Wire Harness & Tuning | SSW | Standalone GM Wire The harness at view is made to fit a LT1 (Impala/Caprice/Camaro) the computer mounts in the right hand front fender, passenger side transmission on this application is the 4L60E. Components included: fuel pump relay, ALDL connector, Ho2 connectors, Tach pigtail, VSS pigtail. Any harness can be made to operate a full or no emissions engine.