1995 volvo 960 after driving for some time the engine loses all power.

What is your question?

the ignition seems to give just enough spak to keep running.then under full power the car slowly acceclerates revving the engine asll the way to 6k b4 shifting gears.If i pull over and stop the car 4 a couple minutes.ignition "off"then it starts and runs normally.would u catorigize this as fuel or ignition trouble?It has been very reliable car,seems like happens when cars hotter on freeway or traffic.I suspect ignition module,checked all relays,fuses??