EGR thows a code because...

[Stringer]

Hope you didn't think I was gonna give an answer! That's the question.

90 Suburban, 5.7 auto, 4x4. Recently put on a new OEM EGR valve and all was fine. Passed inspection because of it. EGR seems to be functioning as it should.
I've read a bunch of the old posts, but could somebody give me a checklist of what might cause code 32 on what should be/seems to be a good EGR? Thanks!

[TheApocalyptican]

Originally Posted by Stringer

Hope you didn't think I was gonna give an answer! That's the question.

90 Suburban, 5.7 auto, 4x4. Recently put on a new OEM EGR valve and all was fine. Passed inspection because of it. EGR seems to be functioning as it should.
I've read a bunch of the old posts, but could somebody give me a checklist of what might cause code 32 on what should be/seems to be a good EGR? Thanks!

Did you replace the EGR solenoid as well?

[Stringer]

No, I didn't. I guess there ought to be a way to test to see if it's kicking on/off.

[pops45]

Found this :

"Typical causes for this code include:

1) Faulty EGR valve-to-ECM connection
2) Plugged EGR passages and/or sticking EGR valve
3) Defective EGR valve
4) Defective ECM"

Here: http://www.truckforums.com/forum/che...-issues-15822/

Also have you disconnected your battery to clear the previous code 32 after you replaced the egr valve?

[Stringer]

Thank you. That's sorta' what I was looking for. A B C ...

Yes, I have disconnected the battery. I may not have gotten the EGR passage cleaned out as good as I should have. And, it could be one of the other things! I'll be working on it this week. Thanks again.

[TheApocalyptican]

Just ordered an EGR valve myself. I think its the wrong valve tho. Everywhere I look seems to be telling me I should have a port style valve. What is currently installed is a negative back pressure valve. Since you have an near identical truck, do you know what yours is, or could you possibly get me the part #?