Factory style replacement harness for this popular GM EFI system. Harness comes complete with factory connectors, terminals, color codes and works of the factory ECM. Harness is designed to mount ECM in a remote location. Fits 1990-90 tuned part V8 with MAP sensor.
Harness has an additional 4 feet inside the passenger compartment to allow location of ECM under seat or under center console. For standard length harness use part # 60103
NOTE: ECM requires use of either part number #64010 or #64023 for VATS (vehicle anti-theft) bypass.