Quote:
Originally Posted by Rodnok1
Alot of newer car issues are grounding problems, I'd start with main battery connections and clean the main ground to start with then find the ground for IAC and clean/check it. Since showing bad coil I'd check the wiring to them and the ground for ICM.
At least on my car one bad ground will back feed and cause issues elsewhere that are unrelated.
I will assume the TB has been cleaned throughly.
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My Z06 died on me on a twisty mountain road. No start but a fire and die once in a while. After getting it home and checking fuel pressure I had 12 psi, should be 58. Everyone said change the fuel pump, which is a huge pain in a later model C5. I finally found the fuel pump ground and it was loose tightened it up and everything worked great. Saved me maybe $900.00 which is what they wanted to change it. Bad grounds can cause all sorts of strange issues.
