sunday420

ok so I hope some one can help me out here because I'm lost. my jeep has beem acting funny. after a few miles on the freeway driving at a speed of 75 mph my engine cuts out. never really shuts off, rpm's will drop and won't respond when I step on the pedal, but all electrical will stay on. I have gavin it a tone up, swapped the fuel pump, filters, fuel injectors. Thinking it might be a fuel problem ... but nope still having problams any body out there that can shine some light on my situation ?