Hello Fello Techs,

Today while scoping a "87" Olds equipped with a 2.5 Li. Vin. "U"; I noticed I had a Secondary waveform on coils #2& #3 that looked fairly normal as far as firing line KV but spark line Kv started approx 1Kv below 0Kv. then rose approx. to ... Login to read more.