Nicco_NGC Posted January 31, 2020 Report Share Posted January 31, 2020 Hi guys, ive had the attached P0100 fault pop up on my car pointing to the MAF sensor but I can’t seem to locate it or find a replacement MAF anywhere that would fit. Am I being simple or does the Lupo gti not use a MAF sensor ? Bonus Fault - if anyone has any idea what the P1503 fault code could be for the alternator (I’ve already put a new alternator and belt on) you’d be helping big time lol Quote Link to comment Share on other sites More sharing options...
Sausage Posted January 31, 2020 Report Share Posted January 31, 2020 (edited) Something affecting air flow, so if no maf then egr stuck, throttle body dirty / clogged or poss lambda stuff depending on how it calculates air flow. 1503 clean all the alternator contacts and look for poor contact on the big earth cables. Edited January 31, 2020 by Sausage 1 Quote Link to comment Share on other sites More sharing options...
Nicco_NGC Posted January 31, 2020 Author Report Share Posted January 31, 2020 1 hour ago, Sausage said: Something affecting air flow, so if no maf then egr stuck, throttle body dirty / clogged or poss lambda stuff depending on how it calculates air flow. 1503 clean all the alternator contacts and look for poor contact on the big earth cables. Thanks mate I’ll have a look 👍🏼 Quote Link to comment Share on other sites More sharing options...
lupogtiboy Posted January 31, 2020 Report Share Posted January 31, 2020 GTI doesn't have a MAF or EGR so I'd be checking both the throttle body and the MAP sensor which is located on the cambelt side of the inlet manifold Quote Link to comment Share on other sites More sharing options...
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