engine misfires only on cold start up
08-18-2011, 08:16 PM
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engine misfires only on cold start up 99 z128 with bolt ons when i start it up and drive it feels like its starving for gas when it hit operating temp if runs fine. im not getting any check engine light and fuel pressure while it was misfiring was 60n psi. im thinking o2 sensors just wanted to see if anyones had the same problem.
