I have a 2002 super duty 7.3 powerstroke. running about 65 mile per hour down the highway and all of a sudden lost power and idles real rough ans has a code p1316 any ideal whats causing the problem

run the fault codes and look for ignition control module problems
v8 and v10 engines have a system where by every other cylinder fires when idling or for low power requirements but all are supposed to be running at revs

they are correct change the fuel filters

Check oil level in gearbox.

gas or diesel ???

This is very complex system. Best to have it checked by qualified diesel mechanic who has the proper equipment to check out all the systems, that could be related to the problem you are having. Just to start throwing parts at it can become very expensive very fast

quite a few possibilites here, a blocked catalatic converter can do this, a blocked fuel filter, a blocked injector pump, if the exhaust is emitting dark black smoke, your injectors could be blocked, I would suggest firstly to buy some very good injector cleaner and run it in the tank,, this may or may not help but its a cheap start and a cheap fix if it works. Good luck

have you replaced both fuel filters? one is on the top of the motor the other is below the dr seat inset in the frame rail

Have you had recall 07S57 camshaft postion sensor rplacement done yet? This recall was for a stalling concern.

try the fuel filter it worked for me

Loss of power, usually after a hard acceleration; Rough idle; Check engine light comes on, DTC P1211:
Intermittent high pressure oil leakage.
This condition usually occurs when the vehicle is cold and the oil is thick. When performing a hard acceleration, the truck suddenly looses power, the check engine light comes on, and once returning to idle the engine runs rough and won't accelerate. Cycling the key may correct the concern, clearing the code from the PCM will correct it temporarily. If you can monitor data stream, at idle the ICP pressure normally is 400-700 PSI and the IPR duty cycle is 9-14%; at cruise, ICP is 700-1200 pSI and IPR is 15-20%; under normal acceleration, ICP is 1200-2000 PSI and IPR is 20-30%; and under WOT accel, the ICP is up to 3600 PSI and the IPR is 35% or higher. When the above symptom occurs, typically the idle ICP reading will be normal, but the IPR duty cycle will be high--over 20% and up to the max 50%. A "blow-by" condition has occured somewhere in the HP oil circuit. If you can get the problem to re-occur with some frequency, the most probable cause is worn or deteriorated injector or IPR o-rings. If the problem is intermittent, it could be a sticking IPR valve. Replace the injector o-rings with the latest-level kits--F8TZ-9229-AA. When replacing the IPR, make sure you get the correct part for the build date/serial number of your engine.