a couple of questions
#1
#5
900 RPM at idle seems high to me. I see idle just under 800. There may be an issue here with the CAM or maybe even with the APPS. Try resetting that sensor by taking off the batteries and going through the procedure of reconnect after 12 hours. It isn't hard but you have to take your time. The procedure is on here somewhere.
Next, how hot does it run? Do you know if there is any timing increase on it? What about after market injectors? More fueling can cause weird things like this.
I would suggest getting a smarty on the truck and setting it to stock ECM from that box. Then, see what it does. Next, I would use the same box and check the codes and then I would crank it up to say setting 5 and run it and see what it does, then return it to normal if you don't have gauges installed.
Next, how hot does it run? Do you know if there is any timing increase on it? What about after market injectors? More fueling can cause weird things like this.
I would suggest getting a smarty on the truck and setting it to stock ECM from that box. Then, see what it does. Next, I would use the same box and check the codes and then I would crank it up to say setting 5 and run it and see what it does, then return it to normal if you don't have gauges installed.
#6
#8
#9
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12vcummins96 (11-07-2009)
#10