08-30-2014, 11:56 PM
(This post was last modified: 08-30-2014, 11:57 PM by cosmic_splatter.)
Fixkick,
After I opened the EGR port inside the manifold, it appears that this would put the EGR system in play with respect to air getting into the engine. I'm wondering if the EGR main may have an exhaust air leak since this photo shows what could be black carbon coming out of the back of the EGR valve.
Is it possible that the air leak could be coming from the EGR main valve seal?
![[Image: EGRValve_zpsff48255d.jpg]](http://i957.photobucket.com/albums/ae59/johnhovan/EGRValve_zpsff48255d.jpg)
After years of running the egr main with a blocked manifold, wouldn't that put more air pressure on the EGR main seal?
I'll continue my testing today with the Tuner Pro software. I think I can fix the closed loop display and rpm issues.
John
![[Image: EGRValve2_zpsee4b5896.jpg]](http://i957.photobucket.com/albums/ae59/johnhovan/EGRValve2_zpsee4b5896.jpg)
After I opened the EGR port inside the manifold, it appears that this would put the EGR system in play with respect to air getting into the engine. I'm wondering if the EGR main may have an exhaust air leak since this photo shows what could be black carbon coming out of the back of the EGR valve.
Is it possible that the air leak could be coming from the EGR main valve seal?
After years of running the egr main with a blocked manifold, wouldn't that put more air pressure on the EGR main seal?
I'll continue my testing today with the Tuner Pro software. I think I can fix the closed loop display and rpm issues.
John
95 Geo Tracker, Build Date 1/95,16v, Fed, Cami, 4x4, MT, Headed for Grenada.