I picked up a 95 Caprice and i want to remove the EGR now, and wanted to know if it will screw anything up. since I know LT4's didn't have them
They were running less part throttle timing.Originally posted by turbochris:
How did they keep cars from pinging at part throttle before they started installing EGR at the factory?
Yup, EGR can be a source of a surge when you have a cam with enough overlap to create its own "internal" EGR.Originally posted by Ram Air 9C1:
This is done for driveability, not performance reasons.
Would it make sense to zero out this table with an aftermarket cam and !EGR? I don't think extra timing is going to hurt anything if there is no pinging. Just want to make sure.Originally posted by Mike454SS:
Don, there's a timing compensation table in the PCM for EGR...it adds spark when EGR is commanded. I can help you delete it the right way if you want...ie fully disabling it in the PCM.