Originally Posted by scott1141
also forgot to say the glow plugs all read .1 ohms
Well that's def. wrong. They should all be aprx. 1.0 ohm. Too low resistance means too high current. Still doesn't explain your performace problem. But just to be sure, have checked to see if it behaves any differently after the glow plugs cycle off?
The pedal position sensor (that's what it is, since our trucks don't have a "throttle") could be the issue. If you have access to a scanner that reads real-time data on our trucks, you can see what the sensor is feeding the PCM. There's also a manual test with a voltmeter; perhaps someone else will chime in with the procedure.