Quote:
Originally Posted by tccrab
While I am no JeffVette, it looks to me like you've found something.
Providing that you measured the coils exactly the same way, i.e., where you touched the contacts with the meter pins, then it would appear that coil pack 3 and coil pack 4 have gone open circuit.
Assuming that these coil packs are not functional or perhaps only marginally operational, you would have the worlds worst running 4 cylinder engine.
TomC
"Crabs"
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Yes, that's what I thought. I definitely don't have a 4-cylinder ZR-1. The car was(before the Summit coils) running fine when cold. I was shocked to not be able to get a reading from 2 of the coils. I must have went back 10 times and tried to get readings from them. Every single time, nothing. I suspect they must be marginal. Why the Summit coils made the car run like crap I still have no clue.
I'm waiting for Jeff to chime in but I'm thinking about going and buying 4 of the GM D545 coils.