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I dont have the stock stuff i bought the car from the dealer with all mods done..only thing i had done was the apr tuning but car has had all mods since 100 miles and has 64834 now with no probs. i got upgraded piston dvalv, catless 3 inch dp, apr intercooler, bsh streetcan pvc upgrade,... i mean its all been done wright cause it was all done by VW this was a special ordar car. So i dont know where els to go with it..
I also tryed going to stock on my chiping witch puts all computer parameters at stock and car runs awsome but light is still on and code still there.. only thing i notice diff is right when u let off clutch u have to give little more fuel than normal other than that its geting better fuel millage and better running with the maf unpluged complety. GOT ME PUZZLED when u plug it in the car makes no diffrence hell if i could take it out and block the hole and fig out how to turn the cel off i would leave it out ...