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Ask Mike V. Your Own Question
Mike V.
Mike V., Auto Technician
Category: Chevy
Satisfied Customers: 25525
Experience:  25 years automotive experience, Certified Subaru Tech and Nissan factory trained.
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Have code P0171, i tried reset the problem the exhaust smeel

Customer Question

have code P0171
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: i tried reset the problem the exhaust smeel bad the spark plug is god mas flow sensor ignition coil hoses god not undertand that code P0171
JA: What is the model/year of your Chevy?
Customer: 2010
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: 2.4
JA: Anything else you think the mechanic should know?
Customer: yes
Submitted: 1 year ago.
Category: Chevy
Expert:  Ron Z. replied 1 year ago.

What model Chevy is this?

Customer: replied 1 year ago.
2010 malibu engine 2.4 automatic
Expert:  Mike V. replied 1 year ago.

HI there,

Do you still need assistance with this?

Customer: replied 1 year ago.
Customer: replied 1 year ago.
few minutes i see a ground on driver side near of ratiator I tight is losse the car is working better just the code P0171 come back make small missfire
Expert:  Mike V. replied 1 year ago.


This is a lean code and I see you have tried most things that cause it.

Check and make sure there isn't a crack in the exhaust manifold. This can cause the lean code because it's sucking air before the front O2 sensor.

If there isn't any exhaust leaks either a crack or a gasket issue there, then it could be as simple as the front O2 sensor reading wrong. This will cause the computer to make a lean fuel mixture and then you will get the code.

Please let me know what more I can do to assist you today. Also, please remember to rate my answer, Just Answer does not compensate me for my time and resources. Follow up questions are included in the price of your question. If you are using the free trial, or have a subscription a rating is still required.
Thank you so much!

Expert:  Mike V. replied 1 year ago.

I hadn't heard from you so I thought I would check and see if you need further assistance with this?