CAR DTC

Everything You Need to Know About the DTC P0171 Code The P0171 code is a common diagnostic trouble code (DTC) that vehicle owners might encounter. This code indicates that the air-fuel mixture in the engine is too lean on Bank 1. Here’s a comprehensive guide to understanding and addressing this issue. What Does the P0171 … Read more

Understanding and Fixing the P0420 DTC Code in Vehicles Diagnostic Trouble Code (DTC) P0420 is a common issue, indicating a problem with the catalytic converter’s efficiency. Here is a detailed guide to help you understand and address this code. What Does This DTC Code Mean? The P0420 code stands for “Catalyst System Efficiency Below Threshold … Read more