On my 2001 Blazer 6 cylinder 4 wheel drive, I was getting 2 P410 codes. I replaced the pump and fuses, the pump now works. I still get the ses light and 1 P410 code. What else could be wrong.

 

Assuming that you meant P0410, have you read through and followed the diagnostic procedures in this post:

P0410 Explained

 

Thanks rriddle3. I just glanced through them on the link you gave me. It seems more technical than I can handle. I thought there might have been another part that someone had some experience with, that maybe I was missed. I think it might be time to go to the guys that know this stuff and let them take care of it.