2005 rodeo 3.0 TD automatic running poorly when warm, no rev counter
 

Need some advice I have a 3.0 TD rodeo automatic 2005, when you first start it, runs spot on, as it warms up the engine management light comes on and the truck starts shaking, then it will cut out if i rev it?
Thought it was the egr so I blanked it but made no difference?
Plugged in Delphi diagnostic and no fault codes are stored.
rev counter also drops to zero when engine starts acting up