Standalone LS 58X Harness DBW
6L80E Transmission
This harness is built to retrofit Gen IV 58X LS engines with 6 speed automatic transmissions into older vehicles. Designed for a plug-and-play install, it features extended length and a sliding grommet seal for a clean, professional finish.
Parts Included:
- Complete engine and transmission wiring harness
- Instruction manual
Additional Items Required:
The harness includes connections for:
- Fuse and relay box
- Fuel pump control (relay included)
- Fan controls (relays and fuse available separately – use PSI-FAN)
- Check engine light
- Speedometer
- Tachometer
- OBD2 diagnostic port
- Accelerator pedal Corvette #ENG022 (WCAPP40)
- Throttle body DBW (WCTHB40)
- MAF sensor 5 wire, card style (SEN026, WCMAF41)
- MAP sensor (delphi connector, WCMAP40)
- Engine coolant temperature sensor, 2 wire (WCCTS30)
- Alternator (2 pin, WCALT40)
- (2) Black Trapezoid upstream oxygen sensors (WC0XY38)
- Crankshaft position sensor
- Camshaft position sensor
- Fuel injectors (EV6 / USCAR / WCINJ40)
- Coil packs (WCCLF30) requires 2 coil harnesses, NOT included, such as WEC0I3
- Automatic transmission control for 6L80E / 6L90E
- Knock sensors (WCKN040)
- Oil pressure sensor LS3 (SEN036, WC0IL40)
Connections from the harness you will need to hook up:
- Fuel pump
- Switched ignition power
- Malfunction indicator (CEL/MIL)
- Speedometer
- Tachometer
- Fan 1 relay control (low/single fan)
- Fan 2 relay control (high/second fan)
Additional Info:
- For retrofitting Gen 4 LS engines into non-emissions controlled vehicles
- Requires switched power, constant power, and ground connections
- Includes 4–5 feet of wire length from rear of cylinder head to PCM mounting location
- Sliding grommet for sealed firewall pass-through
- Built with GM Delphi connectors and TXL high-temp automotive-grade wire
- 100% quality inspected before shipping
- PCM must have VATs removed (available through PSI)
- DOD/AFM not supported
Photos of products are sample images. Actual product may vary.
