adam01 Posted February 10, 2022 Posted February 10, 2022 my a4 b7 obd11 not powering up when plugged in , it works on friends car but not mine , fuse is ok also my maf / mass air flow sensor don't work runs better with out unplugged ??? put new maf in and still dont work HELP a4 b7 1.8t 2007
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