My 96 cherokee acts like its not getting any fuel after about 15-20 minutes of driving. When it acts up it tries to go dead on me when I give it gas, if I let off the gas it sounds fine. I changed my ingition coil and Fuel filter, gave a tune up, and even checked my fuel pump in the gas tank. If anyone has any suggestions, please help.

Throttle Position Sensor(TPS), try that? Only suggestion in mind at the moment.