An LS engine swap is a no-brainer when it comes to adding some affordable horsepower to a project car, but any swap comes with its share of headaches, including wiring. That's where TSP's engine wiring harness comes in. It is designed for engines from '03 - '07 LS Truck drive-by-wire GM trucks with T56 transmissions.
Recommended and Compatible Parts
Main Computer: GM 12586242
MAP Sensor: GM 16212460 / DELCO 12614970
Coolant Temp Sensor: GM 15326388 / DELCO 213-953
Oil Pressure Sensor: GM 12562267
Ignition Coils: GM 12558948 / TSP 81015-8
O2 Sensor: GM 12587785 / DELCO 213-1702
TPS Sensor: GM 12570800 / DELCO 2172293
MAF Sensor: GM 25168491 / DELCO 213-364
CAM Sensor: GM 12561211 / DELCO 213-363
Crank Semsor: GM 12560228, Delco 213-354
TAC Module: GM 12573059
Accelerator Pedal: GM 15264643 (03-05 pedal 9 pin), 15107594 (06-07 pedal 6 pin)
Knock Sensor: GM 1046603 / DELC0 213-3521
- Throttle Type:
- Drive-by-Wire
- Injector Plug Style:
- EV6
- Metering Style:
- Mass airflow
- Fuse Box Included:
- Yes
- Relay Box included:
- Yes
- Fuel Pump Control connector:
- Yes
- Fan Controls connector:
- Yes
- Check Engine Light connector:
- Yes
- Speedometer connector:
- Yes
- Tachometer connector:
- Yes
- OBD2 connector:
- Yes
- IAC connector:
- Yes
- TPS connector:
- Yes
- Accelerator Pedal connector:
- Yes
- MAF Sensor connectors:
- Yes
- MAP Sensor connector:
- Yes
- Engine Coolant Temp Sensor connector:
- Yes
- Alternator Control conncetor:
- Yes
- Upstream Oxygen Sensors connectors:
- Yes
- Crankfshaft Position connector:
- Yes
- Camshaft Position connector:
- Yes
- Fuel Injectors connectors:
- Yes
- Coil Pack connectors:
- Yes
- Throttle Body Control connector:
- Yes
- Knock Sensor connectors:
- Yes
- Quantity:
- Sold individually.
- Universal:
- Yes
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen IV (LS-based engines)
- Engine sizes:
- 5.3L/325
- Years:
- 2003-2007
- Transmission Type:
- T56
