jakelandry
10+ Year Contributor
- 976
- 157
- Oct 13, 2009
-
Minden,
Louisiana
Not sure how many electrical gurus are left around the forums but I figured I would post up for advice. I've spent north of 100 hrs planning out a mil spec wiring harness for my car and I have finally obtained everything needed to start. The harness will be concentrically twisted with shielded wires on the crank, cam, and knock sensors. My question is, would it be overkill to build a separate harness from the mpi to coils? I plan to relocate the power transistor inside the car to clean the engine bay and keep it cooler so the Post ignitor wires, which will be 14ga, would run the entire length of the engine harness. The fact that they are a bigger wire gauge than the rest means they will be at the center of the concentric twisted bundle along with all the critical shielded cables. I do not have the best understanding of how our coil system works but I assume there is high amperage between the ignitor and coils and it seems foolish to run those wires right through the middle of the sensor signal wires if not needed. Am I just being overly cautious thinking it is smarter to run them as an independent harness? I have about $800 in materials and an invaluable amount of time invested in this project and I would hate to make a new harness just to introduce electrical gremlins.