Quote:
Originally Posted by west coast
The computer wires for ground need to go all the way to neg- right to the battery post. When i did this last year to my car it totally change my tune up. I had all ground coming together on a post insulator then a battery cable to the battery, computer was getting noise in that short run from fans and water pump. Bobby what efi are you running.
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Fast XFI 2.0, I always wire computer to battery. However, other things like water pump, innovate O2 logger, distributor Hall effect sensor grounds, etc are all chassis or engine grounds.