hey all,
Ive had my programmer on my truck for a while now and was curious if anyone has had this issue. When I drive the truck on power level 10 and really get on it. The system starts cutting out and flashing de-fuel on the main programmer screen. I have the de-fuel settings turned up; EGT at 1350 F, boost at 35 psi, coolant temp 220 F, oil pressure at 20 psi. I have mechanical gauges and the programmers readouts and they do not exceed my cutout settings. Under heavy load conditions the fuel pressure stays at 15 psi, egt's do not exceed 1000 degrees etc... Is there other things that I am not seeing that will cause the system to de-fuel? When I really put down the pedal the truck opens up and starts screaming then all the sudden it starts de-fueling and cutting down, when this happens it feels like the cummins still has alot of power available if it wouldnt cut out.
What do you guys think?

 

try up loading one of the tunes from their website... mine had that issue while running the older 2000 series tune but went away after i loaded the 3000 series onto it

 

did u ever figure out what the problem was???? i put the quadzilla on my 2001 cummins and its doing the same thing????