When I was in the market for my 4" Super Lift Both SL and AEV said I should get the module.( It was reported they worked on the module together.. As far as I know they may be splitting the profit.. LOL )..
In the module's advertisement it states ... " The AEV EGR (Electronic Geometry Recalibration) Module’s primary purpose is to help the Electronic Stability Program (ESP) system work with the Superlift 4” Suspension System (Part #’s K829 & K829R) in all 2005-07 Grand Cherokees and Commanders. When used properly it will
correct 95% of all low speed false activations of the system.
The AEV EGR Module allows the user to reprogram several factory parameters such as tire size
and gear ratio for accurate speedometer readings. The unit also allows the activation of features such as “one touch lane change” and “reverse mirror tilt” as an added benefit."
I have never been able to get the "mirror tilt " to work but never messed with it that much or even doubled checked to see if my year has the feature.
I was getting a lot of ESP lights before I installed the EGR, now I might get one every couple of months and it goes out after one or two starts.( and before Flashpaq installation)
OBTW.. the "horn honk " to confirm the program was successfully downloaded, did not work with mine. I called AEV and was told as long as I could hear " all the relays behind the dash cycling " it worked.. I heard them ... and it worked !
I installed the Superchip later and used it to correct the speedometer error for my tires etc. Unfortunately I don't know for sure "if the Flashpaq negates the need for the EGR module". And like everything with a computer in it, I know that the Fashpaq has been updated with new and better features sense I got mine !
For quick reference for other readers here is the link to AEV's EGR instructions >> http://www.aev-conversions.com/pdf/i...structions.pdf
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