Painless® Rebate

Expires on February 29, 2016

Purchase any Painless Performance Chassis Harness or Fuel Injection Harness and get a $100.00 directly from Painless Wiring.  Check the Painless Wiring website for more info.  This item is eligible.  

EFI Wiring Harness

1999-2006 GM Vortec 4.8/5.3/6.0L

Mechanical Throttle

For installations of 1999 - 2006, mechanical throttle body, Gen3 (4.8L - 5.3L - 6.0L) engines using ECMs with service #12200411 or #9354896. Engine codes supported are LR4, LM7, LM4, LQ4 and LQ9. 2003-2006 engines require the factory installed throttle by wire throttle body to be changed to a cable throttle type. Harness includes all connections for fuel injection operation: 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. Harness incorporates its own 8 circuit fuseblock with ignition relays and connection to factory style fuel pump relay. This 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.

This kit includes:

• All new fuel injection harness with OEM fitment connectors and harness breakouts

• OBDII connector, mounting bracket and check engine light

• Crimp-on terminals, rubber grommet

• Mounting hardware

• Installation manual