Replacement Engine Harness to cover a wide range of GM LS Engine Variations. Please note that due to the large number of Engines supported it may require user modification for some applications, see Installation Manual or Contact Links Tech Support team to confirm suitability for your Engine. 

PCLink start up MAPs available for both Gen3 and Gen4 LS 

Engines Supported

Gen 3 LS1/LS6     
Gen 4 LS2/LS3/LS7*

Compatible ECUs

G4X StormX (Cable Operated Throttle Body)

G4X XtremeX (Cable Operated and Drive-by-Wire Throttle Body)

See features tab and installation manual for further details.

*Notes for use with Gen 4 Engines

1.    A cam sensor harness extension will be needed to accommodate the Gen 4 LS front mounted cam sensor.      
2.    A small modification is required to the crank sensor connector. See “crank connector” section in installation manual for details.      
3.    Injector Connector Adapters to USCar connector will be required for most Gen 4 Engines. Check your injector connector to confirm. Use Link PN 101-0287      
4.    To support Gen 4 factory knock sensors you will require the Link LS Gen 4 Knock Adapter Loom (PN 101-0306)     
5.    To support the factory Gen 4 MAP sensor you will require a Link LS Map Adapter Loom plus a Gen 3 to Gen 4 MAP sensor extension harness (alternatively you can use a Link MAP sensor which is directly supported by the harness)