What do you suggest?

1998 MERCEDES BENZ ML320
171,919 MILES
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ALBERTTIMME
  • MEMBER
  • 1 POST
PO170 & PO173 error codes. Have Installed K & N Air Filter, Auto Zone ran diagnostics on it and said it was not the Mass Air Flow sensor. Ran High Grade 16-OZ SF-16 SeaFoam motor treatment. That got it to stop for 2 days but the warning light came back on again. The next step will be to remove and clean the oxygen sensors. What do you suggest?
Nov 10, 2011 at 9:55 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Look for a vacuum leak and also check the air tube
Nov 10, 2011 at 10:48 PM
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