2000 toyota camry v6 code p0402

Mar 17, 2009

-   P0402 indicates an excessive EGR flow condition.
I would check to see that the EGR is closing properly.
Does it idle rough?
Excessive EGR would give you a bad idle, or a stall at idle if it was stuck open. Try This: Tap the top of the EGR valve with a small hammer, see if the idle improves. Please respond.

I copied and pasted the previous paragraph because I have same prob
Yes, I have 96 Avalon with these exact symptoms. Car starts and runs good until it warms up....like after running highway speeds and then slowing down to traffic lights, then Car idles really really rough. Almost like it wants to stall. I did tap on top of the EGR valve and it comes back to regular idle.....but then drive around the block and it is rough idle again. When this first started happening I did not get a CEL light that was coming on. But after a couple of weeks I now have the light on and when I do the code check it comes up with P0402.-   tkavanaugh