Engine Randomly Dies...

[DurbElites]

its an 89 xj 4.0 rebuilt engine all new sensors new cooling... everything but the wiring harness. the problem its having is the p.o.s. will be running or driving and just shut off for a second and then kick back on. it will do it when its idling or driving doesnt matter. the motor didn't do this on cam break-in and stared doing it after driving about 50 miles. it will idle then start to die run for a minute then die. Or when your driving it will jump like it died for a second then turn back. its my DD and it takes forever to get to work like this any suggestions????

[madmechanic]

you need to to perform basic checks. grounds are all clean and tight, check fuel pressure. also make sure you don't have any loose connections at the tps, iac or crank sensor. you can try to get the engine to stall while it is running by wiggling those connections. good luck.

[old_man]

madmechanic put it perfect.