2005 Pontiac Sunfire

Asked by Apr 19, 2018 at 12:13 AM about the 2005 Pontiac Sunfire

Question type: Maintenance & Repair

What could be the problem? I changed one O2 Sensor, the
Cadillac converter & all 4 spark plugs, my car is idling
rough when it warms up. Could it be another O2 sensor??  

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