Description
Photos of products are sample images. Actual product may vary.
Designed to be a universal fit LTx engine harness for 2014-up L83 L86 L8T engines, 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.
Easily add electric fans with our Sealed E-Fan Add-on Module (Includes PWM module for Fan relay control)
The CPW Stocker series harness contains all of the following connections:
- ECM (J1 Blue, J2 Black, and J3 Gray Connections)
- Transmission (16 pin Rotating-lock connector)
- Diagnostic Link Connector (16 pin black, intended to mount inside vehicle for ease of access)
- Pedal (6 pin connector, wired for Corvette pedal p/n 19417903 or equivalent)
- Easily switch to factory GM truck pedal by swapping brown and white/black wires
- Crank Position Sensor (3 pin black, rear passenger side behind starter. For 58x Crank reluctor)
- Starter (Single pin connector for Gen V starter solenoid)
- Cam position/VVT (8 pin connector, front of engine at bottom of timing cover)
- Knock sensors (2 pin plug on each side of engine)
- MAP sensor (3 pin black plug, sensor mounts to intake in various locations depending on intake)
- Engine coolant temperature (2 pin plug, top of water pump)
- Mass Air Flow (8 pin plug, installed in inlet ducting. Sensor p/n 23262343 or equivalent)
- Injector Sub-harnesses (two 12 pin plugs at rear of intake, one on each injector bank)
- Coils (4 pin connectors, 4 connections on each side of engine, 8 total)
- Throttle Body (6 pin flat plug)
- Oil Pressure (3 pin flat plug, front of engine under throttle body)
- Cylinder Shutoff (DOD/AFM) (5 pin connector, front of engine under throttle body)
- Oxygen Sensors (4 pin flat plug. Routed out back side of engine. Use GM p/n 12659516 or equivalent)
- Alternator (2 pin plug, Connects to stock GM Gen L83/L86 Alternator)
- 2014-2016 Fuel rail pressure sensor connector (4 pin near rear Driver’s side of intake, only used for 2014-2016 engines)
- A/C Pressure (3 pin plug, rear Passenger side of harness. For idle adjustment and e-fan control functions)
Bare input and output wires
- 12V switched (Pink/Black, ignition power signal from vehicle ignition switch)
- Cranking Signal (Yellow/Black, 12V signal to trigger starter relay. Makes use of built in neutral safety of 6 and 8 speed transmissions)
- 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)
- Tap Shift (Purple, can be used with resistor pack and proper TCM programming to operate tap shift function)
- Brake Switch (Light Blue, connect to brake switch for TCC lockup control)
