P0sTaL_2500HD
08-29-2010, 05:09 PM
:confused::confused::confused: hey i need some help with an issue i am having ... i just recent have gotten a p1094 code... i think i know what it is but im not sure where to start looking ... Im looking for the ground wires as it seem to be a ground issue.
what happens: when i start the dmax the truck starts up fine and idles fine but if i tap on the acc and get it to rev i have no reving action but truck moves under own power when in drive. Now sometimes when i restart the truck again after the first start ill get rev's to 2k - 2.5k but now when i put it into drive it will move but ill have to put the acc to the floor to get the dmax to start moving, but she comes back to life after a few min. Also there has been a few cases where ill start her up and shes alive and well. I need some help on where to start to look. It looks like the ground is the issue but not sure what area to start at....
thanks in advance....
P1094 Code :
The ECM uses the Fuel rail pressure (FRP) sensor to determine fuel pressure to the injectors. This is then compared to the calculated target fuel pressure as determined by the ECM. The ECM adjusts the FRP by modulating the duty cycle of the control driver of the fuel pressure regulator. Injector pulse duration is determined by the measured rail pressure and the target injection fuel into each cylinder. If a sensor circuit malfunction is detecred, or the commanded fuel injection pump flow is not within the prper range for a given engine load and speed, DTC will be set..
what happens: when i start the dmax the truck starts up fine and idles fine but if i tap on the acc and get it to rev i have no reving action but truck moves under own power when in drive. Now sometimes when i restart the truck again after the first start ill get rev's to 2k - 2.5k but now when i put it into drive it will move but ill have to put the acc to the floor to get the dmax to start moving, but she comes back to life after a few min. Also there has been a few cases where ill start her up and shes alive and well. I need some help on where to start to look. It looks like the ground is the issue but not sure what area to start at....
thanks in advance....
P1094 Code :
The ECM uses the Fuel rail pressure (FRP) sensor to determine fuel pressure to the injectors. This is then compared to the calculated target fuel pressure as determined by the ECM. The ECM adjusts the FRP by modulating the duty cycle of the control driver of the fuel pressure regulator. Injector pulse duration is determined by the measured rail pressure and the target injection fuel into each cylinder. If a sensor circuit malfunction is detecred, or the commanded fuel injection pump flow is not within the prper range for a given engine load and speed, DTC will be set..