Join Date: Aug 2009
Location: Edmonton, Alberta
I am collecting DTC's like stamps, another one showed up last night while I was working, P0454 Evaporative Emission System Pressure Switch/Sensor Intermittent. I guess that means the FTP sensor is done for.
I misquoted the P0191 code, it is actually P0192, if that makes any difference.
P0642, Sensor Reference Voltage A Circuit Low, is the code I couldn't remember yesterday. So all together I have collected P0192, P0452, P0454, and p0642 so far.
It will also sometimes squeal when it is having idle issues, the problem abates somewhat when I get the truck in gear and moving, but I am definitely down on power.
At this stage I would drive it out there if I could get this headache dealt with, I've done 2 different dealerships and gotten 2 misdiagnoses. If there is any way I could get this solved I would take it.