Engine/Transmission (1994 - 1998) Blocking EGR

[GMike]

Did a search, is putting a plate on exhaust manifold and at EGR valve still the way to go? Do I then leave the EGR tube off? Saw where some have solved the CEL after doing this. But the instructions were unclear to me. Guess I can live with a CEL for a while, but I can no longer live the thought of all that soot and what its doing.



TIA Mike

 

[Signal73]

we removed the egr tube and blocked it off at the manifold, removed and plugged the vac lines and switched intake horns on a friends 98 12v with no ses light on at all or anything different then normal operation except peace of mind knowing all that crap wasnt going into the intake.

 

[GMike]

Thanks for the reply Signal73. Pluging the vacume lines might keep the light off. I'm going to give it a try this weekend if all goes well.



Thanks again,

Mike

 

[jtwcummins]

The EGR equiped trucks use the IAT to test for proper operation. When the EGR turns on the IAT should increase at least 10*, if not the CEL is set.

 

[ScottLewis]

With Jay's (jtwcummins) guidance I set up a diagram of a fix for the CEL using a relay and resistors. If you want it, PM me.



Dan

 

[jtwcummins]

Glad someone had the info. I sold my 97 after 11 yrs and got more emissions in my 08. Thanks Dan

 

[GMike]

Thank you jtwcummins, hopefully blocking the vacume lines will keep the EGR valve from opening and keep the IAT from looking for a temp difference. I have the manual and have read the "EGR DESCRIPTION AND OPERATOIN" twice I think I will have to read it a couple more times with it setting under the hood.



From what I understand of this, I can block the exhaust then live with the CEL until I get that figured out, from the forum search, block the EGR intake also to improve boost. A new intake horn would be nice to improve flow.



I see you are from Minden, I have a good buddy in Washoe. We are in the area quite a bit.



Thanks again

Mike

 

[GMike]

Dan, PM sent



Thank you



Mike