The PO171 code indicates a lean fuel condition on bank 1, often caused by faulty oxygen sensors, vacuum leaks, or fuel delivery issues. Since ignition coils and spark plugs were …

Chevy Mechanic: BigBlock434 The code primarily relates to fuel. Your vehicle experienced a lean condition, which triggered the code. My concern is that any engine with fuel, fire, and …

2017 Chevy Sonic 1.4L P0171 Code Persistent After Valve Cover Replacement Sonic 1.4L often faces vacuum leaks and faulty mass airflow sensor causing P0171 codes. Code P0171 …

Customer: 2001 Chevy Prizm manual shift with five speed OD 105,000 miles: Having a reoccurring problem for the past year and 20,000 miles, the "check engine light" keeps coming …

2008 Chevy Equinox P0171 Code: Engine Running Lean on Bank 1 Equinox often faces issues with faulty MAF sensors and vacuum leaks causing lean conditions. The P0171 code indicates …

2017 chevy trax 1.4 awd 50,000 miles codes p0171, and u0121 common causes where to start repair? Mechanic's Assistant chat Customer: For a 2017 vehicle with a 1.4 engine and all …

Code po171 -system too lean bank one. What do you do to fix problem. Car died and started later that night.

My chevy cruz is a 2012 1.8l 2011 Chevy Cruze. Has a code po171. It had the code p0171 before I replaced the valve cover

P0171 and P0174 indicate a lean fuel mixture on both engine banks, often caused by vacuum leaks or a loose gas cap. Start by inspecting the gas cap for cracks or improper sealing, which …

Chevy Mechanic: ToddAuto Thanks for the information, I understand the trouble you are facing with your 2005 Chevy Cobalt, as you are getting the code PO171 and PO420.The trouble you …