Question about 2001 Volkswagen Jetta TDI
I have a 2001 Jetta 1.8t with an enige code of 172, running rich. Anyone had this problem, I've been told it could be the O2 sensor or the mass air flow sensor. Any ideas.
You may just have a dirty MAF sensor, spray brake clean through the sensor and clear the code, run it a few days to see if the code comes back.
Posted on Sep 16, 2008
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Posted on Jan 02, 2017
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