I have an 03 dodge Cummins and I recently reflashed my ECU with the HPtuners supplied calibration. so far everything is working great but I noticed that now when my ignition is on and engine not running, my fuel pump (lift pump) runs constantly, wheras before it would just prime and then shut off. I was curious if there was an option in the software or if it could be added to enable/disable the pump prime only so that while writing to the ECU I don't have the lift pump running constantly without the engine running. Anyone else notice this? I also was curious if the supplied calibration is for an HO or an SO because I found out my ECU is a CM846 while the supplied calibration says CM845. My truck is a factory HO.
Thanks