P0401

What is your question?

Ok anyone tired of hearing from me.. As stated before we've changed the Egr valve, modular (solenoid),Carbon Canniser, MAP, idol control valve, etc... my mechanic tells me I have a whole new Emissions systems we have replaced 6 parts and the others have been checked. I had another mechanic check the code after driving 79 miles before the light came on after replacing the last part.. It idols rough, lousy gas mileage the second mechanic tested the egr while in idol and said it wasn't blocked but he would have to break down the whole system being everything has been replaced..but it would be week after next before he could do that. Any suggestions from the panel here. oh yea it is a japanese built camry..... so it is a little different i've been told