I threw this code (p0401)
Im sure this question has been answered many times, so sorry first of all. But I have a few questions---

How would I diagnose if it actually is a bad EGR valve
How do I clean out the EGR valve ( something about a little screen or filter? or somthing )
and any other useful information for getting rid of my CEL.!

I'd appreciate any help.

thanks.-

 

Here this might help.

Vineros is more indepth than mine. But mine is easier to read, and it helped me out.


Modified by Acidcrakker at 2:12 PM 3/8/2008

 

Wrong thread. Here's the one you want:

https://honda-tech.com/zerothread?id=2016969