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8G (2015-2023) · 1.5T 자동

2026. 7. 1. 작업

증상

94 Z28 LT1 Camaro. Intermittent stalling/starting problem. Been haunting me forever. Typically my car will start fine when it's been sitting overnight. Then I'll drive to the gym which is 2 miles away. The car will sit for the time I'm in the gym maybe an hour and then won't restart. I'll let it sit some more, crank it and eventually I'll get it started. Then it will stall at idle. I'll let it sit, get it started again and this time it will drive a short distance before sputtering on acceleration and cutting out. Sometimes it won't sputter, and instead will just instantly cut out and I'll coas

처리 내용

There are two places this could be: ICM or Optispark. The intermittent nature of it leads me to believe it is ignition related. On your year of LT1, ignition issues can pretty much be boiled down to these two things (as you are describing). Just because you've replaced the ICM, does not mean it isn't at fault. Usually the way the engine dies with an ICM fault is it ... well ... just dies. The ICM, since it sits directly on the head (in stock fashion) absorbs more heat than the little cooling fins can dissipate. The easiest way to cure this is to do the ICM Mod . This entails getting the ICM off of the head. There are two ways I've done this in the past, that being using three 3/8" flat washers under the bolt/stud. This raises it off of the head and allows it to cool better. I've also found the small spacers which are used on the exhaust are perfect for this. The spacers are found on stock exhaust manifold bolts. Usually, if you put headers on there, these will not be used. Since I pers