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.

 

Both EGI fuses and the ENGINE fuse have to be good for spark.

 

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??

 

bump

 

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.

 

will do

 

fuses good, grounds good.

why would the coils not be getting power??

 

ignition switch is bad

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