as already stated i did the crank sensor. today i did the cam sensor. inspected wires. they look great...i also inspected thm when i had the harmonic off when i changed the crank sensor...all wiring is in good condition with nothing bare or touching anywhere it shouldnt be......so any more ideas for this rpm spike and then the thing goes to shut down...i am about to mess with the knock sensors.....im lost. after this im gonna try changing the ign control module again..this will be the third one.....