|
things change
...."This wouldn't be so bad except for the fact that the EGR algorithm is factory programmed to deliver the EGR charge during times of needed power production."....
......"EGR acts like a buffer in the chamber and so increases the requirement for enrichment fuel under conditions that necessitate PE or AE.".......
original EGR design focused on NOX reduction
but that is no longer the case .
in my experience , the system any system
will switch the EGR flow off
right away
before it will add any enrichment .
current EGR systems are NOTHING like what would be found in your 1986 camaro or 1991 truck
what car what system ?
and
why do you think more mass is entering the combustion chamber when the EGR is on as opposed to when EGR is off ?
MOST current systems use MAF sensors NOT speed density systems
Load is DECREASED with EGR operation
repeat your testing with your focus to see .
|