It is a complete standalone replacement wiring harness that suits GM LS1 engines (1997 to 2002) with drive by cable throttle body and 4L60E or 4L80E automatic transmissions. Perfect for retrofitting into older muscle cars and street rods or newer non-emissions-controlled vehicles with a four-wire hook-up (switched power, constant power and ground connections). The harness features a sliding grommet seal for a leak proof installation and 1.2 to 1.5 meters (3.9 to 4.9 feet) of length from the rear of the cylinder head to the PCM mounting position under the vehicle dashboard. The harness is constructed with GM Delphi connectors and terminals and high temperature wires. It includes all wiring that is required by the Powertrain Control Module (PCM) to run and control the fuel injection system and automatic transmission.

Connections included for:

• Fuse/Relay Box
• Fuel Pump Control (Relay included)
• Fan controls (Relays and fuse Sold Separately)
• Check Engine Light, Speedo output, Tachometer, OBD2 Port
• Idle Air Control and Throttle Position Sensor
• 3-Pin Mass Air Flow Sensor
• Manifold Absolute Pressure Sensor
• Engine Coolant Temp Sensor
• 4-Pin Alternator Control
• 2 x Oxygen Sensors
• Knock Sensor
• Crankshaft Position
• Camshaft Position
• Fuel Injectors (EV1 Plugs)
• Coil Packs
• Automatic Transmission Control

Important Information:

This loom does not have the oil pressure switch plug in the harness. It is designed for conversion engines where the oil pressure gauge is used or an aftermarket dash where you can use an auxiliary to run a sensor. The wiring harness has a provision for factory oil light on the dash in under dash wires section.

Part number: AF49-1505