harder start when hot

140K 98 autobahn package, new wires, plugs, intake and throttle body clean, you can bump the key on a cold start without giving any gas and the car comes alive, after we get to operating temp, shut off, restart the 4.0 seems to stumble on restart. Any ideas? Car runs great no CEL.:feedback:

After a lenghty search, I think I'm going to replace the FPR for process of elimination. Can't hurt, already replaced fuel pump, sending unit, filter.