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Our New LS1 standalone builder series engine harness is designed for the mechanical throttle body engine using an 98 to 03 LS1 ECU with a 4L60E/4L65E automatic transmission.

As a builder series this allows you to change & modify for your LS1 needs, also allowing you to wrap the wires in the protecting cover you like.

Great for any Hot Rod or Custom Street Car with everything you need to turn the key.

GM LS1 EFI 98/03 standalone engine wiring harness for auto gearbox 4L60E (DBC)

Included with this harness is an 8 circuit modular fuse block and labels for easy installation.

Perfect for those that plan to mount these components under the seat or in the centre console.

This standard length harness allows four feet from the back of the intake manifold to where the fuse block.

Harness Length: 4 Feet Between Engine and ECM

Fuse Type: Blade

Ignition : 40amp
Fuel: 40amp

This kit includes connections:
Alternator Plug
Cam Position Sensor Plug
Crank Position Sensor Plug
Data Link Connector Plug
Driver/Pass Front O2 Sensor Plugs
Engine Coolant Temperature Plug
Fan:1 Relay Ground ECM Activation
Fan:2 Relay Ground ECM Activation
Fuel Pump Relay
Idle Air Control Plug
Ignition Switch Signal
Injector EV1 Plugs
Intake Air Temperature Sensor Plug
Knock Sensor Plug
Malfunction Indicator Lamp
MAP Sensor Plug
Mass Airflow Sensor Plug
ECM Plugs
Throttle Position Sensor Plug
Transmission Plug
Vehicle Speed Sensor Plug
VSS Output for Speedometer
Rubber Firewall Grommet (universal)
Starter Connector (universal)
Oil Connector (universal)
Tachometer Connector (universal)
Fuel Pump Relay (universal)
Ignition Relay (universal)
Engine Warning Light (universal)
BWA 8 Circuit Fuse Box

Fuse Block Protects Circuits:
RH Injectors & Coils
Ignition Relay
Fuel Pump Relay
O2 Sensors, Mass Airflow Sensor, & Brake Switch
LH Injectors & Coils
ECM & Malfunction Indicator Light

 Part:: BWAWHLS1A03

BWA engine harnesses are professionally constructed from Brand New GM Delphi Connectors and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications.

All harnesses are 100% Quality Inspected prior to shipping. Note that harnesses are for non-emissions equipped vehicles and do not include air pump or EGR provisions.

Available in this kit is a sliding grommet seal and 4 - 5 feet of length from the rear of the cylinder head to the PCM mounting position under the vehicle dashboard.

All LS1 engine control units require PCM security VATs removal, available through BWA Australia. Please contact us for more information.

 ATT:: This harnesses does not include any emissions related connections.

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