D2 Cat
Member
Lately truck seems to pulsate in RPM's without me changing the accelerator peddle. Just enough to notice it. I though maybe fuel filter needs serviced, but I think it only has 5000 miles or so on it. Then I thought PMD acting up.
Then I checked codes.
23 (accelerator Pedal Position 1 Circuit range Fault),
31(EGR control Pressure)
32(EGR Circuit Error),
35(Injector Pulse Width Error-time short),
36(Injector Pulse Width Error-time long)
and 85 (don't know what this one is).
Yesterday the truck started fine, but for about 10 miles it acted like I might eventually get stranded by the way it was letting up and then catching on again. Speeds were various all the time, but up to 65 MPH. At about 10 miles down the road it seemed to clear up. I went another 12 miles and turned it off. Two hours latter it started right up ran w/o the stumbling for 5 miles. I stopped at the car wash and after that it went into another episode of stumbling. I got home OK, but I need to determine the cause.
I have a back up PMD which I am going to plug in. And, probably get a new fuel filter just because.....
Any ideas of where to start?
Then I checked codes.
23 (accelerator Pedal Position 1 Circuit range Fault),
31(EGR control Pressure)
32(EGR Circuit Error),
35(Injector Pulse Width Error-time short),
36(Injector Pulse Width Error-time long)
and 85 (don't know what this one is).
Yesterday the truck started fine, but for about 10 miles it acted like I might eventually get stranded by the way it was letting up and then catching on again. Speeds were various all the time, but up to 65 MPH. At about 10 miles down the road it seemed to clear up. I went another 12 miles and turned it off. Two hours latter it started right up ran w/o the stumbling for 5 miles. I stopped at the car wash and after that it went into another episode of stumbling. I got home OK, but I need to determine the cause.
I have a back up PMD which I am going to plug in. And, probably get a new fuel filter just because.....
Any ideas of where to start?