This is a discussion on P0404,p0405 within the General Help forums, part of the LSx Technical Help Section category; I'm getting codes P0404 and P0405 (and SES light) from my '98 Chevy S-10 2.2L 4. Both of these codes ...
06-26-2009, 06:08 PM #1
- Join Date
- Jun 2009
- Schenectady, NY
- 1998 chevy s10
I'm getting codes P0404 and P0405 (and SES light) from my '98 Chevy S-10 2.2L 4. Both of these codes relate to the egr valve. I replaced the egr valve with another, but I'm getting the same results. Engine runs fine at all speeds. I also tested the "gray wire" supply voltage which is "right up there" (> 5.0 V). Can anyone give me some ideas for fixing this problem?
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