HELP!!!! dtc P0172
#1
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HELP!!!! dtc P0172
ok...so this code keeps popping up... can anyone tell me why its going off and what i can do to fix it....i bought the car with aftermarket exhaust but it just started going off 9 months after buy the car... its annoying and i want it fixed!!!! any help will be greatly appreciated
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Last edited by xxopposablethumb; 06-30-2009 at 05:50 PM. Reason: Automerged Doublepost
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P0172 Fuel Trim System Rich -PCM
https://www.cobaltss.net/forums/showthread.php?t=3480
hope that helps
https://www.cobaltss.net/forums/showthread.php?t=3480
hope that helps
#4
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P0172 means car thinks its running too rich. It may actually be or it may not.
If it is, you need to check for restricted air filter, or air intake, stuck on EVAP purge valve, leaking fuel injectors, failed fuel pressure regulator.
If its not (just thinks it is) you could have a bad O2 sensor, damaged wiring, a faulty PCM.
If it is, you need to check for restricted air filter, or air intake, stuck on EVAP purge valve, leaking fuel injectors, failed fuel pressure regulator.
If its not (just thinks it is) you could have a bad O2 sensor, damaged wiring, a faulty PCM.
#5
Senior Member
iTrader: (1)
P0172 means car thinks its running too rich. It may actually be or it may not.
If it is, you need to check for restricted air filter, or air intake, stuck on EVAP purge valve, leaking fuel injectors, failed fuel pressure regulator.
If its not (just thinks it is) you could have a bad O2 sensor, damaged wiring, a faulty PCM.
If it is, you need to check for restricted air filter, or air intake, stuck on EVAP purge valve, leaking fuel injectors, failed fuel pressure regulator.
If its not (just thinks it is) you could have a bad O2 sensor, damaged wiring, a faulty PCM.
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