Question about 1999 Dodge Intrepid
Engine Performance problem
1999 Chevy Cavalier 4 cyl Front Wheel Drive Automatic 145000 miles
I have a 1999 cavalier with a 2.2 liter engine front wheel drive. Currently the engine blows out black smoke, and really goes at it on hills. It has the error code number P0171 is on the check engine light. Currently I have replaced the, bank 1 and bank 2 o2 sensor with both bosche manufactured ones. IAT sensor, the map sensor, the coolant temperature sensor which has the car running some better. But still hesitates and stumbles while driving, and of course the black smoke. Just had the exhaust fixed and a new catalytic converter put on it fell off so I opted just to replace it.
Black smoke is usually unburned fuel. P0171 reads bank 1 system too lean. There isn't one answer. You need to dig further and inspect your cars fuel system, from the pump to the injectors. Because of the mileage you may want to start off with a compression test just to see where you stand with the motor. write back if you have any other questions.
Posted on May 14, 2009
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Posted on Jan 02, 2017
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