Description
Photos of products are sample images. Actual product may vary.
LS Swap wiring harness designed to be a universal fit LSx engine harness. Our Stocker Series harnesses come standard with a sealed fuse box, Techflex split braided loom, and heat shielding to protect areas of the harness that are typically near exhaust.
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The CPW Stocker series harness contains all of the following connections:
- ECM (Blue and Green Connections)
- Crank position sensor (3 pin black, rear passenger side behind starter. For 24x Crank reluctor)
- Cam position sensor (3 pin black, top rear of engine)
- Knock sensors (2 pin plug, top rear of engine, connects to factory sub-harness)
- MAP sensor (3 pin gray plug, sensor mounts to intake in various locations depending on intake)
- Engine coolant temperature (2 pin plug, front Driver’s side cylinder head)
- Mass air flow (5 pin plug, front of engine. Sensor p/n 19330121 or equivalent)
- Injectors (2 pin plugs, optional Multec, EV6, and EV1 connection)
- Coils (7 pin gray plug, between middle 2 injectors on each side of engine. Connects to factory coil sub-harness)
- Throttle body (8 pin black plugs in to throttle body)
- Throttle Actuator Control (TAC) module connection (16 pin gray plug near ECM)
- Sub-harness for electronic pedal (10 pin black to 10 pin gray)
- Oxygen sensors (4 pin square gray. Uses sensor p/n 12587785 or equivalent. Routed out back side of engine)
- Alternator (4 pin plug, 2 wires. Connection for common GM LSx 4 pin alternators)
- Diagnostic link connector (16 pin black, intended to mount inside vehicle for ease of access)
- Vehicle speed sensor (2 pin plug long enough to reach tail of transmission)
- Optional – 4L60E or 4L80E Automatic transmission connector (Round gray plug out back of engine)
- Optional – Input speed sensor (2 pin plug, included with 4L80e transmission option)
Bare input and output wires
- 12V switched (Pink/Black, ignition power signal from vehicle ignition switch)
- Power to Fuel Pump (Gray, 20A fused output from fuel pump relay pre-installed in sealed fuse box)
- Tachometer (White, engine speed output from ECM)
- Speedometer (Dk Green/White, calculated vehicle speed output from ECM)
- Check Engine (Brown/White, ground signal from ECM to operate service engine light)
- Fan 1 (Dark Green, control wire from ECM to operate primary electric fan relay)
- Fan 2 (Dark Blue, control wire from ECM to operate secondary electric fan relay)
- Optional – Brake Switch (Purple, connect to brake switch for TCC lockup control)
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