This page is meant to help you troubleshoot the Chevy Suburban 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
P0171 and P0174 both indicate that there is a lean condition present in your Chevy Suburban. By themselves, these are some of the most common OBD2 codes. When they are together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more
One of the most common issues that happens with the Chevy Suburban is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system. While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more