240sx Ls1 Wiring Harness. This Guide is written from the perspective of starting with a completely stock 240sx and swapping in a mostly stock LS1 style motor and can be applied to pretty much any S-Chassis from an S12 up through an S15 and any Gen III or Gen IV GM small block V8. With some patience and a lot of labeling you can wire in your LS1 without too many problems although the ultimate solution is a swap in ready to run harness.
All PSI Harnesses are Made in the USA. Includes detailed instructions and a start up guarantee. Wiring Specialties offers a number of options for common performance upgrades for this product.
With some patience and a lot of labeling you can wire in your LS1 without too many problems although the ultimate solution is a swap in ready to run harness.
All PSI Harnesses are Made in the USA. You will see the 2 ground wires to the left on this diagram for the ground wires leading to your LS1 sensors. This harness is specifically engineered for a USDM Nissan 240sx S14 95-98 with any GM Generation IV LS2 Engine using an LS1 Drive-by-Cable Throttle Body TPS Alternator LS1 PCM. It was developed in house on an actual S13.
