Question about 1997 Pontiac Sunfire

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97 sunfire on start up rough idle

Only on days when there is condensation on car after reving engie for a minute it smoothes out but it does throw a code

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What code? if it is a 2.4 liter then it would most likely be the coil housing and plug boots. this has been a problem for this engine always. otherwise when it is running rough open hood and look for sparks from the plug wires going to ground. that problem would be the plugs and wires.

Posted on Apr 22, 2009

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