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Help, no Spark from 1 coil

Posted: Sat Jan 06, 2007 5:01 pm
by mrmom
New to this site. Son has a 90 Legacy wagon, won't start,he replaced the coil pack and igniter and only gets spark from one coil.
He checked the crank and cam sen. and said they are good.
Anyone have any ideas? Coil pack has power but only the rear coil fires when the engine is turned over. Coil pack is getting a signal from one lead from the igniter. Bad ECM??
He pulled a bunch of codes but hasn't cleared them, and I don't remember what they were.
Thanks for any help. almost to cold to work in a cold garage in Northern Nev.

Posted: Sun Jan 07, 2007 10:14 pm
by Legacy777
Try clearing the codes, and seeing what comes back.

I'd also suggest checking the wiring to make sure the wiring from the ECM to the ignitor and from the ignitor to coil pack are good.