0 votes

have tried to clear code PO171 with cleaning MAS and checking for leads but code keeps coming back. Any common leaks with this type of car that anyone knows that might help

Vehicle: 2006 Volkswagen jetta 2.0 T

1 Answer

0 votes
by (11.5k points)
Hi there,

If the mass air flow is good and there isn't any intake manifold gasket leaks, it could be an issue with the front O2 sensor or with the exhaust leaking. Low fuel pressure will also cause this as well. It is still possible the maf sensor is the culprit even though you have cleaned it.

Related questions

37.5k questions

30.8k answers


20.6k users

Need A Repair Shop?
Find local automotive repair shops in your area.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

Home - For Shop Owners - About AutoCodes.com - Privacy Policy - Terms and Conditions - AutoCodes.com Feedback - Copyright 2010-2020 AutoCodes.com

AutoCodes.com - Engine-Codes.com - Infinitihelp.com - Nissanhelp.com