Thread: High rpm engine problem

i dont even know what the ICM is, how can you check it?

Not sure how it's controled but isn't the fuel pump a dual pressure system for when it boosts it goes to a higher psi or something?

Originally Posted by backinblackgtp

i dont even know what the ICM is, how can you check it?

ICM= Ignition Control Module. This is the part that sits below all the coils and has the large wire harness connected to it. No idea how to test though besides swapping in a known good one.