Quote:
Originally Posted by bd3500
Update:
I cleared the code and it stayed off for about 20 days. My service engine light just came back on with the following codes:
P0175
P0172
Searching around on the forums some people think that it is the MAF. How can I tell whether or not I need to replace the MAF or not as this is a $300 part that I would prefer not to do trial and error to fix. Any other diagnostic data I can gather?
Thanks!
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With the system too lean and system too rich faults at the same time you most likely have 2 problems. What I usually find (and back up with data read through the GT1) is the lean misture faults to be vacuum leaks and/or torn intake boot and/or leaky cyclone valve. And the rich mixture to be faulty MAF sensor. (backed up by reading the multiplicative values before and after replacement)