Need MAF??

03-14-2007, 08:35 AM

mslc791

Registered User

Join Date: Jul 2004

Posts: 121

Do I need MAF sensor??

I had a dealer replace the left rear sensor (was throwing PO156 and 161 codes). About a year and few month later, CEL came on and now I have PO161 again(O2 sensor heater circuit malfunction) and pending code PO173 (fuel trim malfunction) stored. And it is the same bank and sensor again. Should I replace it again or is it an indication of something else going wrong?

Last edited by mslc791; 03-27-2007 at 10:09 AM.

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