truck dies when holding in the clutch

[RossWM]

I have a 99 (late model) F250, when i hold in the clutch while driving the RPM's drop rapidly and dies, seems to happen more often from high RPMs but every now and then from lower RPMs also. I originaly thought it was due to having low compression and just another sign among many that the engine needed rebuilt but i just finished having the engine rebuilt and it still does it. Does anybody know or have experienced this? It first started right after i changed the driver's side UVCH i reinstaled the old harness thinking maybe i got a bad part but still same thing, maybe i shorted something out when i changed it?

also the times that i hold the clutch in and it doesn't die you can see the RPM's drop down real low below idle speed then shoot back up to idle, like it overshoots its idle speed

[jwink]

Not sure, but sounds like it may be hpop related.

[jesilvas]

You need to monitor many things to be sure.
Fuel pressure, ICP, IPR to name a few.

[RossWM]

I've done some looking around on google and it looks like theres a problem with the IPR getting corroded up and causing this, my question is can I pul the IPR without pulling the injection pump? Also could it be a sign of a bad ICP sensor?