1998 Toyota Avalon Q&A
1998 Toyota Avalon Question: engine light
just bought the car..engine light come on..code read egr..i think it was #401...enyway i put all new egr valve and sencer on ..everything was like $171.00.car run great before and after the light come on..turned the light off tried to get it inspected and even thought the light was not on it still showes up in the inspection and fails..they said put some miles on it so i put about 30 miles on it and the light came back on.took the positive post off and got the light back off...drove it for another 100 plus miles..light came on again and still reads egr code.car runs great but i cant get it inspected.HELP!! - Visitor
The EGR port in the intake manifold might have clogged up and restrict or block the flow. It probably has to be cleaned out. Since you said everything was replaced, that's pretty much the only thing left, beside a wiring harness or computer problem. Zee - ZeeTech
could be the ECT PWR button, if your car has one . Drive with it on, and the check engine light might turn off after driving it for around 100 mi without disengaging the ECT PWR. It worked for me, perhaps you to. - andrewjack
I had a garage replace the valve cover gasket on my '99 Toyota Avalon. The check engine light now comes on intermittantly. I took the avalon back to them, but it still comes on. What gives?
I have done a lot of research and have discovered that this particular vehicle has an electrical problem which involves the VSC, VSC off, and check engine lights all are on and come back after rese...
the check engine light stays on all the time