Changed fuel filter still spits and sputters fuel pump noisy is it the fuel pump or fuel injection regulatoror possibly throttle positionsensor problem, its a 5 speed,cherokee 2.5L

indicates a low fuel supply problem
If it has a carby --blocked main jet, fuel flow through the tap, filter in the tank , hoses, needle and seat. tank vent
If injected, low fuel pressure (pump or pressure regulator), tank vent

You check cam timing? Also valve adjustments.

Usually a sputter will occur under load conditions like going up hill from a lack of fuel. Start by changing the fuel filter.

That would be my suspicion, too. That or the filter. Check the fuel pressure to be sure. If throttle body injection, pressure should be around 18-20 psi. (Don't know how that translates in Europe.) Multi point injection should have pressure around 40 psi.

A 22r engine uses a carburetor, and a 22rec is fuel injected. If you have the fuel injected model, the throttle position sensor could be faulty.

make sure vacuum port for PCV is pulling vacuum. They tend to get clogged with carbon when oil changes are over due , oil level is low

Clean throttle body, change fuel filter, plugs, and definately plug wires.

Egr seems to be common problem with these.

SOUNDS LIKE YOU HAVE A PLUGGED FUEL FILTER OR A DEFECTIVE FUEL PUMP, HAVE IT TESTED.

Does that engine have a TPS (throttle position sensor)? If so, disconnect it from the engine and connect an ohmmeter to it, to check for jumps or bad spots at any position, from throttle closed to throttle wide open ... of course, with the engine OFF! There is a possibility that you have "slow" fuel injectors (meaning they may be gummed-up, so they react too slow to pulse width changes. But that could be cured by running a can of Seafoam through the tank, as long as the injectors are not damaged or leaking. Check the fuel pressure at the injector rails (if in fact it uses fuel injectors, which I don't actually know). It might have a carburetor, at that age. If so, how is the choke linkage ... perhaps stiff?

I would suggest Installing a New K&N Air Filter and Get 2 Cans of B12 Chemtool and run 1 at a Time througha Full tank of Fuel. The filter will Increase the Air flow by 50% and the B12 will Clean the Entire Fuel System. I use these Both in My 95' Silverado when it does this and always works!