Tech, Repairs, Upgrades > Capri N/A 89-94

Can Iridium Spark Plugs cause engine stalling?

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greywolf27030:
Cold would affect starting, if it's a little lean, it would be hard to start. Does the IAC work like it should?

mr_gr1mm:
as far as I know the iac works just fine. never had this problem with the old spark plugs, is there anything I should look for to make sure it's still working?

Rocketman:
Do you still have the old spark plugs? Toss them back in and see if the issue persists.
It's a weird issue, doesn't make sense, spark plugs / wires should not cause that.
Check to make sure all the plug wires are seated properly. I have a had a loose ignition wire on the coil cause power loss on turns before, otherwise ran fine. Stuff would move in the engine bay and increase the gap inside the loose plug boot, reducing spark power to the plugs. Took a while to hunt down

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