Take advantage of GM's electronic engine management system with this Painless Wiring Harness. Complete stand alone harness allows you to install late model GM Truck 4.8, 5.3, or 6.0 Vortec fuel injected engines with mechanical throttle body, and correct computer into almost any chassis.
Besides the obvious economy and driveability benefits, check out these other great features that make it easy and painless to install:
- Foolproof factory connections
- ALDL (diagnostic) OBD II plug
- Computer controlled fuel pump provision
- GM color code
- Closed loop design
- Complete information manual
The standard length harness allows four feet from the back of the intake manifold to where the fuseblock and ECM mount. Perfect for those that plan to mount these components under the dash or in the glove box.
1999-2005 GM Vortec Wiring Instructions (PDF)
Number of Circuits: 8 Fuses with Ignition, Fuel Pump & Air Pump Relays
Fuse Type: Blade
Firewall Passthrough: Grommet
Color Code Based: 1999 C1500 Truck
Connectors Included: ECM, TPS, IAC, CTS, IAT, MAF, MAP, Injectors**, Coils, CMP, CKP, Knock, VSS, ISS, 4L60E & 4L80E Transmissions, Front Bank 1 & 2 O2 Sensors. Emissions connections included in harness include: Secondary air pump, Secondary air solenoid, EGR, Canister vent and Canister purge
Circuit Designations: Printed Wire Tags on all Connectors and Open Ended Wires
**Harness does not support Flex Fuel USCAR Injectors.