Standalone Gen 4 LSx Engine Wire Harness DBW (58X)
T56, TR6060, or Non-Electronic Automatic Transmissions
This drive-by-wire harness is designed to retrofit Gen 4 LS engines with 58X reluctor wheels into classic cars using manual transmissions (T56/TR6060) or non-electronic automatics (TH350, TH400, Powerglide). Built with OEM-grade components and a professional layout, it’s a plug-and-play solution for street rods and muscle car builds.
Parts Included:
- Complete engine wiring harness
- Instruction manual
The harness includes connections for:
- Fuse and relay box
- Fuel pump control (relay included)
- Fan controls (relays sold separately – use SKU 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 (4 pin, WCALT30)
- (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
- Knock sensors (WCKN040)
- Oil pressure sensor LS3 (SEN036, WC0IL40)
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)
- DOD/AFM not supported with this harness
- Sliding grommet allows for a professional, leak-proof install
