I have a 2000 Camry LE 2.2
Went to autozone and the CEL code came back with: P401 and P406. This is what I found on
P0401 Exhaust Gas Recirculation Flow Insufficient Detected P0406 Exhaust Gas Recirculation Sensor "A" Circuit High
I had P401 before and the dealer changed out the
1- vacume S valve assy 2- egr vacume valve assyand that was like 14 months ago in Tx. I am in FLorida now. They have 24 months warranty but works needs to be done at their service ctr.
I might try cleaning the EGR tomorrow. Cos
Thx