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60509 - 1998-2004 GM LS1/LS6 EFI Extra Length Harness - Mechanical TB

60509 - 1998-2004 GM LS1/LS6 EFI Extra Length Harness - Mechanical TB

  • $639.99

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This harness is designed for the 1998-2002 LS1 mechanical throttle body engines using a 1999+ LS1 / LS6 ECM with a 4L60E/4L65E automatic or T56 manual transmission. These engines were found in 1998-2002 Camaro/Firebird. This harness will also work on 1997-2004 Throttle By Wire (TBW) LS1/LS6 engines which has been changed to mechanical throttle body or any 1999-2006 (4.8, 5.3, & 6.2) Vortec truck engine which has been changed to a factory of aftermarket LS1 intake manifold, mechanical throttle body, and injectors. Harnesses do not include any emissions related connections but are available separate. Included with this harness is an 8 circuit modular fuse block and GM color coded wires with labels for easy installation.

This extended length harness allows eight 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 seat or in the center console.

This kit includes:

All new fuel injection harness with OEM fitment connectors and harness breakouts
OBDII connector, mounting bracket and check engine light
Rubber grommet
Mounting hardware
We recommend checking the online manual for the full list of required mating parts prior to ordering.


The Fuse Block Protects The Following Circuits:

Driver Side Injectors and Coils
Dual 40 amp Ignition Relays
Fuel Pump
Heated O2 Sensors, Mass Airflow Sensor, & Brake Switch
Pass Side Injectors and Coils
ECM and Malfunction Indicator Lamp

This harness includes connections for the following components:

Brake Switch
Cam Position Sensor
Crank Position Sensor
Data Link Connector
Driver/Pass Front O2 Sensors
Engine Coolant Temperature
Fan #1 Relay Ground ECM Activation
Fan #2 Relay Ground ECM Activation
Fuel Pump
Fuel Pump Relay
Fuel Pump Test
Gear Indicator Switch
Idle Air Control
Ignition Coils
Ignition Switch Signal
Intake Air Temperature Sensor
Knock Sensors
Malfunction Indicator Lamp
MAP Sensor
Mass Airflow Sensor
Reverse Lockout Solenoid
Skip Shift Light
Skip Shift Solenoid
Throttle Position Sensor
Vehicle Speed Sensor
VSS Output for Speedometer

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