P0401 EGR Flow Insufficient on Toyota Camry: Clean It First, Replace It Later

Your Toyota Camry has a P0401 code, and the first instinct most people have is to look up the price of an EGR valve and order one. Stop. Before you spend $80 to $250 on a part, you should know that the EGR valve itself is the least common cause of P0401 on the Toyota […]