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2006 chevy cobalt 2.0... P0171. Winter weather, front end…

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2006 chevy cobalt 2.0......
2006 chevy cobalt 2.0... P0171. Winter weather, front end took pretty hard hit in a ditch. Had to replace secondary (front) cooling radiator. Had lean code ever since...
Submitted: 2 years ago.Category: Chevy
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Answered in 26 minutes by:
2/3/2016
Chevy Mechanic: Ron, ASE Certified Technician replied 2 years ago
Ron
Ron, ASE Certified Technician
Category: Chevy
Satisfied Customers: 38,076
Experience: 35 years experience with ASE Certs
Verified

Hello and thank you for your question,

One common cause for this code to set can be caused by a dirty MAF (mass air flow ) sensor or even a failed MAF if it got wet when you hit the ditch. I would start first with making sure the intake hose from the MAF to the throttle body is porperly installed and not leaking and if that looks okay the try disconnecting the negative battery cable and take some MAF cleaner and give the MAF a good cleaning.After doing so reconnect the battery and see if the code retrurns.

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Customer reply replied 2 years ago
Changed spark plugs. Ran for over 50 miles. No codes but still chugs in lower rpm's...
Chevy Mechanic: Ron, ASE Certified Technician replied 2 years ago

Did you try cleaning the MAF as I suggested?

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Customer reply replied 2 years ago
Went to check maf & filter. Found out I have no filter or cabin... That might cause an issue...
Chevy Mechanic: Ron, ASE Certified Technician replied 2 years ago

So you saying the filter is missing?

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Customer reply replied 2 years ago
Filter & cabin (filter housing) gone...
Chevy Mechanic: Ron, ASE Certified Technician replied 2 years ago

Well I think you just found your problem, it need to be replaced and I would also clean the MAF as I suggested.

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