Having Pass side dp replaced under warranty (P0421)....Are they going to reflash the ECU?....
03-31-2007, 04:08 AM
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Having Pass side dp replaced under warranty (P0421)....Are they going to reflash the ECU?....
I read somewhere in the archives that there is a TSB for the P0421 efficiency code that involves a reflash. the dealer has said nothing about it---only about replacing the part. The issue is that I don't want them reflashing my AMS box, but I don't want to tell them I'm chipped. I can swap the original back in, just don't want to mess with it if I don't have to.
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