After removing egr system, I left the sensors plugged to the egr valve etc and just zip tied them near original location to fool the stock ECU. I then plugged the MAF señor back in to the air box lid to keep check engine light off.
However, when I did this the fuel mileage decreased significantly so I tried unplugging the MAF again and the mileage immediately improved.
Why would this make a difference when it cannot mechanically open the egr valve etc since it isn't even connected to the engine?
_________________ 05 Blu LIM, OME GDE Tbo, wk II 245/75/17, KC Lights, bull bar, 195K H TC 05 Blu Lim, Dayton, GDE HT, 255/75/18 , 210K , H TC 06 Bla Lim, GDE Eco, Destination AT 245/75/17, 151K, H TC 06 D Khaki Lim 126K wkII Eur TC 05 D khaki Lim 145k refurbishing All CRDS: Fumoto, Lift , Fan Shroud mod, fuel head Gen II, SAMCOS,self TB, 2 Mic filt, Hayden
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