Replacement Base Harness GM LS GEN3/4

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. PC Link start up MAPs available for both Gen3 and Gen4 LS (See below for download) Engines Supported Gen 3 LS1/LS6 Gen 4 LS2/LS3/LS7*Compatible ECUsG4X 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 Engines1. 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 US Car 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) If you require a fuse box and relay, please purchase 101-0310 in addition. Gen3 PC Link MAP Files Gen3 Cable Throttle Base Map for G4X XtremeX/StormX Gen3 DBW Base Map for G4X XtremeX/StormX Gen4 PC Link MAP Files Gen4 Cable Throttle Base Map for G4X XtremeX/StormX Gen4 DBW Base Map for G4X XtremeX/StormX Manuals Online Instruction Manual

Genuine Link connectors, pins and terminals are matched to the exact connector types used on Link ECUs and looms, helping ensure a secure, weatherproof connection. Using the correct crimp tool and terminal for each pin size and wire gauge is important for a reliable, long-lasting connection in the engine bay. Keeping a few spare connectors, pins and blanking plugs on hand makes it much easier to modify or extend a loom later without having to source parts mid-installation.