87 ignition or coil problem
skipsrocks
12-05-2004, 12:38 PM
I have an 87 Fiero. Solid state ignition with what I believe are two coils (two plug wires come from each). One is dead (cly 2 & 3). I replaced it but still no spark to these two plugs. New plugs and plug wires, so it's not that. Any thoughts? Thanks
Skipsrocks
Skipsrocks
michelq
12-05-2004, 01:19 PM
most likely bad ign module
skipsrocks
12-06-2004, 12:41 PM
Ignition Module. Follow-up question. Where's that? I know, I know, get a book - it's on order. The two coil system is new to me. Until I receive my book, I'm not even certain that it's a coil. But there's no distributor on this engine (87 4 cly).
Ragtop_Renegade
12-06-2004, 03:38 PM
They're called coil packs, and are very similar to coils, with one exception, each coil pack fires 2 cylinders, while a coil simply fires everything and the distributor handles what spark goes where when. The ignition module is the electronic thingamajig the coil packs mount on top of, and where the ECM to ignition wiring harness harness plugs in. I agree this is probably what's bad.
michelq
12-06-2004, 05:12 PM
They're called coil packs, and are very similar to coils, with one exception, each coil pack fires 2 cylinders, while a coil simply fires everything and the distributor handles what spark goes where when. The ignition module is the electronic thingamajig the coil packs mount on top of, and where the ECM to ignition wiring harness harness plugs in. I agree this is probably what's bad.verey good explenation . right on keep it up
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