Car dies, I'm out of ideas.

goodyear1984 · 10-13-2008, 12:07 AM

when the icm goes 99% of the time they quit when hot because the resistance get higher when hot and usally car will stop running when hot.rule out one thing at a time take a spake tester and connect it between the wire and plug.see how its sparking when it is skiping.also check all the plugs and look to see if one of them looks way diff from the others,pay attention which plug came from which cyl

Three02much · 10-13-2008, 10:04 AM

im going to replace the icm today. i checked the wires with an led test light and seemed to flash correctly, but its hard to tell because it only misses in the higher rpm ranges. i didn't get it hot enough to where it totally dies but i think i got it narrowed down enough to be confident that it is the icm.

10-13-2008, 12:07 AM	#1
goodyear1984 Registered Member Join Date: Dec 2006 Location: new york Posts: 482	Re: Car dies, I'm out of ideas. when the icm goes 99% of the time they quit when hot because the resistance get higher when hot and usally car will stop running when hot.rule out one thing at a time take a spake tester and connect it between the wire and plug.see how its sparking when it is skiping.also check all the plugs and look to see if one of them looks way diff from the others,pay attention which plug came from which cyl __________________ 347 stroker all forged,arp everything,stud mains w/girdle,7qt pan,full roller, custom cam, aluminum heads swirl valves 5 angle valve job.quick fuel 750,areomotive pump,cobras w/nitto drags,and m/t et drags for the track, ford racing 373 gears,centerforce clutch,tko500,underdrive pulleys,bassani x-pipe,flowmasters ^best et so far 11.6 1.61 60ft coming soon 9sec et's 1992 mustang gt 2001 gmc 1500 4x4 78 century boat 92 skidoo

10-13-2008, 10:04 AM	#2
Three02much Registered Member Join Date: Oct 2008 Posts: 12	Re: Car dies, I'm out of ideas. im going to replace the icm today. i checked the wires with an led test light and seemed to flash correctly, but its hard to tell because it only misses in the higher rpm ranges. i didn't get it hot enough to where it totally dies but i think i got it narrowed down enough to be confident that it is the icm.

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