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2003 Chevrolet Monte Carlo Question: 03 MONTE CARLO AFTER CAR WARMS UP RUNS ROUGH LOW IDLE STALLS OUT HARD TO START

 

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CHRIS N, 3.4L V6, West Palm Beach, FL, September 01, 2011, 03:44
 Technician

HAVE PULLED CODES GOT VARIOUS CODES P0420 FOR CAT. CONVERTER, P1107 FOR MAP SENSOR, P0122 FOR TPS, AND ALSO A O2 SENSOR CODE, HAVE CHANGED MAP SENSOR AND TPS SENSOR STILL NO CHANGE IN CONDITION

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