Question about 2002 Pontiac Sunfire
Have you checked your fuel pump and relays for fuel system? AND , have you had the obd codes run yet? That sounds like the places to start_fuel system/delivery. Oxygen sensorswould be my next shot. maybe one wasnt replaced or came loose during new cat install. have them double chk that for you.
Posted on May 29, 2011
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Posted on Jan 02, 2017
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