Chevy Blazer P0401: EGR – Insufficient Flow Diagnosis
P0401 is a common OBDII trouble code that’ll pop up in the Chevy Blazer. It has to do with the emissions system and stands for: The EGR system on a vehicle is responsible for recirculating exhaust gasses in order to lower the vehicles emissions output. There are three main parts of the Blazer’s EGR system. … Read more