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Ok, so yesterday on my way home from work, I decide to pull the vacuum line off of the EGR to see how the beast runs. I didn't care if it threw a CEL, I just figured it would stop exhaust gases from getting back into the intake and keep things a little cooler and cleaner. I unplug the vacuum line and plug it up, then start the car. It ran just the same, but it never threw a CEL. I dorve it all the way to work this morning and it still didn't give me a CEL. So I'm thinking it could be one of 3 things:
1. The computer doesn't care for some strange reason (highly unlikely).
2. The EGR valve is stuck open so regardless if it has vacuum or not, it is open and the computer doesn't care, as long as it sees flow when it needs it.
3. The CEL is burnt out. (I really doubt this). I didn't look to see if it comes on when I turn the ignition on, and I should have now that I think of it.
I don't have any spare vacuum line laying around to put on the EGR and give it a little suck at idle to see if it affects it. I am betting on number 2 above, but I want to see what you all think. It will help me in starting to figure this out.
Thanks,
-Nate
1. The computer doesn't care for some strange reason (highly unlikely).
2. The EGR valve is stuck open so regardless if it has vacuum or not, it is open and the computer doesn't care, as long as it sees flow when it needs it.
3. The CEL is burnt out. (I really doubt this). I didn't look to see if it comes on when I turn the ignition on, and I should have now that I think of it.
I don't have any spare vacuum line laying around to put on the EGR and give it a little suck at idle to see if it affects it. I am betting on number 2 above, but I want to see what you all think. It will help me in starting to figure this out.
Thanks,
-Nate