GM Standalone LS1 Drive by Cable Engine and T56 Manual Transmission Wiring Harness

This GM Standalone LS1 Drive by Cable Engine and T56 Manual Transmission Wiring Harness is built for standalone Drive-by-Cable engine management with T56 manual transmission. The harness integrates the fuse/relay box, sensor connectors, engine control wiring, fuel pump control, fan control, OBD2 connection, and supporting outputs needed for a clean LS/LT engine control installation.

Use this harness when the engine code, throttle type, transmission connector, ECU strategy, and sensor layout match the compatibility section. The EV1 injector plug style should be matched to the engine and injector set. Confirm transmission pin count, pedal and throttle body requirements, oxygen sensor layout, MAP/MAF connections, and power/ground routing before installation.

Compatible With:
CHEVROLET GEN III / IV LS SMALL BLOCK V8
• 4.8L / 293 in³
• 5.3L / 325 in³
• 5.7L / 346 in³
• 6.0L / 364 in³
• 6.2L / 376 in³
('97-'04 Corvettes, '99-'06 GM Trucks*):
*Fits LS1/LS6 (5.7L) Corvettes and Vortec (4.8L, 5.3L, 6.0L)
GM trucks
*Fits drive-by cable applications with LS1 intake manifolds and T56 manual or non-electronic automatic transmissions

Notes:
For Use with TSP Products
TSP adapter 81033 required in order to use GM #12592525 MAP sensor.
Will plug into TSP 81050 injectors with their included adapters.