this lil thing has caused me trouble,
first time was 1-1-07 new years morning, got up and attempted to start up my car and at first it didnt wanna turn over , so after a couple of tries the engine started and the idle was rough, and u could feel that it was miss fireing, so i got a lil voltage meter test sted the ends, and found that 2 out of the 4 were sending power through, so i replaced this part, now sat. 4-28-07 morning i go to turn on my car and the same thing happens, i know that im gonna have to replace the same part, but does anybody know why the ignition control module went out for the 2nd time? i dont have warrenty and its only bout 70 to 100 bucks to repace it, so no biggie, just wanted to know why this is happening, my car is an 05 sunfire, 5spd, short ram air intake and sport muffler, i always fill up with 93octaine gas, and change oil reguallry with 5W30 full synthetic Mobile 1 Oil, and use AC Delco sparkplugs
try different plugs, they my not be working good, and causing a back flow of power, this is not a first, on my engine i added a plasma booster and iridium plugs and spark spring from rk sport. it went out while stock 2 time under warranty. ever since not one time, yet
clean the ground connections inbetween the coilpack and the valve cover and get new plugs when you replace the icm
I belive that on my 02 GA The Traction control Computer told it to do something stupid becouse of a bad wheel sensor and it nuked it. Mine went bad the very same way as you described. I have a used one for sale if you have an interest.
dont have traction control, got me a brand new one for bout 80 bucks, we'll see these last might buy me some denso plugs or somethin
Make sure you put a nice new set of plugs in, clean the grounds as Cheesecake said, also inspect the harness where it wraps around the head and down under the engine, inspect for chafing.
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most of these we pull apart have rust in the jump plug even though there is a seal check there
