Chevy Malibu P0171: Causes, Diagnosis, + How to Fix

One of the most common trouble codes with the Chevy Malibu is P0171. It indicates that your Chevy Malibu is running lean on the bank one side.  It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. P0171 is … Read more

GMC Sierra P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the GMC Sierra P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more

Chevy Cruze P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Chevy Cruze P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more

Chevy Cobalt P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Chevy Cobalt P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more

P0420 Code Cadillac

This page is meant to define the symptoms of the Cadillac P0420 trouble code. It covers Cadillac P0420 meaning, symptoms, causes, and possible solutions. Cadillac OBDII P0420 is often caused by a bad oxygen sensor, but there can be other causes as well. One of the most common trouble codes with all Cadillac vehicles is … Read more

P0420 Code Chevy

One of the most common trouble codes with all Chevy vehicles is the P0420 code. This code number references a number that is given to you when you plug your Chevrolet into a OBDII scanner.  It doesn’t matter which model you have, the P0420 Chevy OBDII code has the same meaning.   P0420: Catalyst System Efficiency … Read more

GMC Terrain P0171

  One of the most common trouble codes with the GMC Terrain is the P0171 code. This code number references a number that is given to you when you plug your car into a OBDII scanner.  The purpose of this article is to give you a general overview as to what causes the P0171 OBDII … Read more