p0172 & p0175 out of the blue???
01-23-2009, 03:31 PM
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p0172 & p0175 out of the blue???
My truck has been running flawless for the past year and then I get these codes. I scanned the truck and my LT trims on both banks went from -1.6 to around -10 to -13 at idle. I thought it might be a dirty MAF as I have an STS turbo and i get a little oil in the intake now and then. I cleaned it twice but no help.
My question is how can I tell I tell if my MAF is working correctly? Is these a set voltge or flow rate I should look for?
I get both codes on BANK1 and BANK2 so I am assuming it is not an o2 sensor.
Anything else I can look for?
My question is how can I tell I tell if my MAF is working correctly? Is these a set voltge or flow rate I should look for?
I get both codes on BANK1 and BANK2 so I am assuming it is not an o2 sensor.
Anything else I can look for?
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