MAF issue... P0103 code

TriviaSteve

Veteran Member
Joined
Sep 10, 2012
Location
central PA
TDI
2003 Jetta GLS Wagon, 550K miles, 2015 Golf Sportwagen TDI S, 100K miles and a 65 beetle
Having an issue with this. I replaced the MAF sensor with a brand new one, and it's still throwing that code. Any advice?

TIA...
 

Tdijarhead

Top Post Dawg
Joined
Nov 10, 2013
Location
Lawrenceville PA
TDI
2003 TDI Jetta Daughters Car, 2001 TDI Beetle, Wife’s car, 2005 Golf TDI Mine, all 5 spds
If it’s a brand new Bosch, then check the wire plug. My daughter was having a problem with her 03 and the MAF plug just wasn’t making a good connection.

If it’s not a new Bosch then that is likely the problem....still.
 

TriviaSteve

Veteran Member
Joined
Sep 10, 2012
Location
central PA
TDI
2003 Jetta GLS Wagon, 550K miles, 2015 Golf Sportwagen TDI S, 100K miles and a 65 beetle
Had Auto Zone plug it in to get the code...

TDIjarhead, it is a brand new Bosch. I will check and clean the connection. Will see if that works. Apparently, after some additional research, that does seem to be the biggest problem with that.

Thanks STDoubt. will check that out.
 

TriviaSteve

Veteran Member
Joined
Sep 10, 2012
Location
central PA
TDI
2003 Jetta GLS Wagon, 550K miles, 2015 Golf Sportwagen TDI S, 100K miles and a 65 beetle
used some of the QD Electronic Cleaner on the connection. Two applications and the light went off and it seems to be running much better. Thanks for the suggestion!
 

Tdijarhead

Top Post Dawg
Joined
Nov 10, 2013
Location
Lawrenceville PA
TDI
2003 TDI Jetta Daughters Car, 2001 TDI Beetle, Wife’s car, 2005 Golf TDI Mine, all 5 spds
Great news, that’s exactly what my daughters problem was. Just a bad connection.
 
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