Standalone Gen 3 LSx Engine Wire Harness DBW

4L60E Transmission

Designed to retrofit GM truck Vortec engines into classic muscle cars and street rods, this drive-by-wire harness offers a plug-and-play solution with a professional-grade fit and finish. Includes sliding grommet seal and extended length (4–5 feet) from cylinder head to PCM location for flexible installation.

Parts Included:

• Complete engine and transmission harness
• Instruction manual

The harness includes connections for:

• Fuse and relay box
• Fuel pump control (relay included)
• Fan controls (relays and fuse sold separately – use PSI-FAN)
• Check engine light
• Speedometer
• Tachometer
• OBD2 diagnostic port
• Accelerator pedal
• Throttle body DBW (WCTHB40)
  
• MAF sensor
• MAP sensor
• Engine coolant temperature sensor, 2 wire (WCCTS30)
• Alternator (4 pin, WCALT30)
  
• (2) Square Female 2-Keyway upstream oxygen sensors
• Crankshaft position sensor
• Camshaft position sensor
• Fuel injectors (EV6 / USCAR / WCINJ40)
  
• Coil packs (WCCLF30) requires 2 coil harnesses, NOT included, such as WEC0I3
  
• Automatic or manual transmission control
• Knock sensors
• Oil pressure sensor

Additional Info:

• Built using brand new GM Delphi connectors and TXL high-temp wire to OEM specs
• 100% quality inspected before shipping
• Four-wire hookup: switched power, constant power, and ground connections required
• PCM must have VATs removed (available through PSI)
• Designed for use with drive-by-wire engines only

Photos of products are sample images. Actual product may vary.