Toyota EGR Diagnostics P0401

Older Toyota cars may run forever, but even they need some maintenance once in a while. This 2000 Toyota Camry has had the Check Engine Light on for years, and the owner finally decided to get it fixed. The code in memory is the common P0401-EGR Insufficient Flow. So let s dive in, get familiar with the classic Toyota EGR system, and pinpoint the problem. Enjoy! Ivan