Question about 2001 Volkswagen Golf
I hit a pretty nasty bump on the interstate several weeks ago and Immediately afterward my check engine light came on.
The computer gave me the following codes when hooked to a meter:
-P0103: Mass or volume air flow sensor circuit high input
-P0172: System too rich bank 1
I replaced the Mass Air Flow sensor and reset the computer; my check engine light stayed off for a few days, but it's come back on and is throwing out the same two codes.
I hesitate to throw more money at the MAF if there's something else going on. Any ideas?
Go after the Egr valve, if its sticking then there is a vacumn leak.
Posted on Nov 05, 2009
Vacuum leak somewhere.
Possibly could be the O2 sensor (the one before the cat up front).
I'd search for a vacuum leak since you may have rattled something loose.
Posted on Jul 15, 2009
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Posted on Jan 02, 2017
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