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Both coils not firing

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Old 10-27-09, 09:05 PM
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Both coils not firing

friend just bought s4.

started and high idled for 30 seconds (sounded good), then died.

no spark at all.

the high idle was cold start high idle like a lot of em do, well at least all the ones i owned.

what and why?

havent checked igniter yet. could this be the culprit?



also, no idiot lights on when ignition was turned on.
Old 10-27-09, 09:08 PM
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HAILERS

 
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Both EGI fuses and the ENGINE fuse have to be good for spark.
Old 10-27-09, 09:13 PM
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now that you mention it, the stupid guy had all the fuses mixed up. he had like the 80 amp on the bottom, all screwed up

put them in the right order, still no spark.

computer dead??
Old 10-27-09, 09:38 PM
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bump
Old 10-27-09, 10:04 PM
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check all the ecu grounds. just finished an engine rebuild at school today and went to start it up for the first time and we couldn't get spark. figured out it was a set of grounds way out of sight that we forgot to put back on.
Old 10-27-09, 10:07 PM
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will do
Old 10-28-09, 05:13 PM
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fuses good, grounds good.

why would the coils not be getting power??
Old 10-29-09, 09:33 PM
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ignition switch is bad

thanks for all the help, couldnt have done it without you.
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