I have a 2005 lly that doesn't seem to want to read balance rates when warm 160+, all read 0. It also has a slight miss at idle when it wont read balance rates. If you put your foot on the brake it'll read and clear up (won't miss) but as soon as you let the brake off it goes back to missing every so often. This is all in park, in gear it reads fine and within spec as well as driving there's no problems. Replaced injectors back in march of this year (another issue). Also checked wiring going to the ficm and was fine. Replaced ficm and still no change.
It's to the point where I'm at a dead end on what to try next. I was going to try data logging the truck with an autocal to see what it might be but am unsure on what PID's to choose to help me diagnose this. I have checked FPR actual vs desired and that was within spec +/- .1 kpsi.
This doesn't seem to be a major problem just something that bothers me and I'd like to try and figure out what is causing it.
Anyone have some suggestions for PID's or answers to what may be causing my problems?
TIA
It's to the point where I'm at a dead end on what to try next. I was going to try data logging the truck with an autocal to see what it might be but am unsure on what PID's to choose to help me diagnose this. I have checked FPR actual vs desired and that was within spec +/- .1 kpsi.
This doesn't seem to be a major problem just something that bothers me and I'd like to try and figure out what is causing it.
Anyone have some suggestions for PID's or answers to what may be causing my problems?
TIA