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Re: EGR cleaning on 03 6.0L
The VGT map is stored in KAM (keep alive memory) and shouldn't change unless the batteries have been disconnected.
Ford tells us that we should perform the KOEO On Demand test after cleaning or replacing the EGR... however, many seem to have cleaned (and even replaced) the EGR valve with no apparent driveability concerns in spite of not running the recommended routine.
Unlike a DIYer, a dealer tech can't pull the roof off another cold one saying "oh, well...." - nobody stands around having a good chuckle over our mistakes or oversights so we must do it absolutely right the first time.
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