Code P0170

Tiny
GETSET123
  • MEMBER
  • 2006 MITSUBISHI MONTERO
  • 3.8L
  • V6
  • 4WD
  • AUTOMATIC
  • 145,000 MILES
Check engine light on as well as the symbol that shows the car skidding. Plus the little light that illuminates the transfer case is blinking. This is in the same cluster that indicates if all 4 wheels are engaged. 4wd appears to not engage.
Researching the code PO170 indicates several possible malfunctions including MAF sensor, O2 sensors, air intake gaskets, vacuum leaks, etc. What is the best way to proceed without buying each new part until you find the faulty one?
I have checked for vacuum leaks and there appears to be none. So which part do I replace first? Or any other advice would be very helpful. Thank you!
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Tuesday, January 12th, 2021 AT 1:05 PM

1 Reply

Tiny
KEN
  • ADMIN
These are two different problems please repost for the 4wd issue. The p0170 code sounds like a MAF sensor or vacuum leak here are three guides that can help with the MAF sensor location in the diagrams below.

https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers

and

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/how-to-replace-a-mass-air-flow-sensor-maf

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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Wednesday, January 13th, 2021 AT 5:45 PM

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