Apologize now, what I think I need is to write this out and possibly answer my own question before I start looking for the problem. The question is: My OBDII diagnostic will attempt to clear the code, the Check Eng Lite extinguishes but the code remains set, "Pending P0172". If a vacuum leak were constant, would cause code to be continually set. If MAF were faulty, would cause code to be continually set. Am I going down the right track so far...? If a bad O2 sensor, not seeing a fault code or is P0172 higher code and masking the O2 sensor code?
Great site!
Thanks in advance.
David Willburn
Philly
Great site!
Thanks in advance.
David Willburn
Philly
Nov 2, 2015 at 4:48 PM