So im tearing apart my track car over the winter and have a few questions. the first is what are the plugs for on the engine harness that plugs on them? what do they do? second is the harness what tucked before im just cleaning it up and getting rid of some unneed wires and extending some others will a need to have the engine tuned again?

 

Your post makes no sense. Can you clarify?

BTW, there is a 1,200 page thread ongoing in the Group forum that can answer and has answered every possible question regarding tucked engine bays.

Why would extending wires require a re-tune?