Testing coils on a coil over plug system?

[art leong]

Originally Posted by magnumv8

Hey Art.....I personally have had cam and crank sensor failures that caused a loss of power and the engine did not want to run unless the rpms were up.....they can fail and send a false trigger signal to the ECU......


D L Rambo....

That sounds like my problem. I'll check them out in this order. Because the only way I know of the check the pickups is to replace them.
I'm going to wire a direct hot line to the ECU (bypassing switch panel). Then I'll check out the coils. If they are good I'm going to replace the ECU (They sent me a spare) If that isn't it I'll replace the pickups. Then If it isn't fixed I'll have thrown all the parts at it I can think of.
Today I started it up and was able to get it in gear with out to much trouble. I let it warm up fully then shut it down It got to late to start it up again (hot). I'll try it tomorrow If it gets worse when it's hot. I'm thinking coils.