95 chevy s10 4.3Z tbi missing at idle, smells rich

  • applehead281
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2 months 1 week ago #201924 by applehead281
I have a 95 chevy s10 with the early 4.3 Z code tbi motor. I did a full tune up last year including iac,egr, plugs, wires, cap and rotor. And it still didn't fix the issue I have had for a while now. Only at idle the motor chugs and sounds like a miss out the exhaust. Once you give throttle miss goes away and is super smooth. Back to idle and miss returns and smells super rich.... I can't figure this out for the life of me!!

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2 months 6 days ago #201949 by Tods213
Like my shop instructor used to say, if you have a misfire, start looking for vacuum leaks.

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