[Edbrooks]

6-4.0/auto. Suspected CPS but resistance readings (235 ohms) are correct. MAT resistance readings correct. MAP operating correctly.
When first started, drive off cold and the vehicle will hesitate or die completely. If it dies, the starter cranks, but won't start. Sounds like CPS, right? However, pumping gas pedal a bit will get it started. Sounds like TPS? Voltage readings on TPS are correct. When vehicle is warm, SO FAR there has been no problem. Two years ago I replaced the sensor in the distributor to correct a transmission problem (which it did.) Recently replaced O2 sensor. Coolant sensor tests OK.

Possibly connected: When first started, idles smoothly, after brief (two minute) warmup, appears to miss. Even when restarted hot, will run smoothly for approx 2 minutes, then return to idle miss. Fine at above idle. Suspected O2 sensor but it made no difference. O2 relay is operating.

Probable bad injector, so new set arriving and will be installed in a few days. Fuel pressure regulator tests OK. Fuel pressure within range, but bleeds off more rapidly than it should, and leaky injector is suspect. Plan to first replace all injectors and o-rings. If problem persists afterward, next step is TPS. Noted that Autozone does not sell TPS and CPS is special order. Any other sources of dual TPS other than the platinum ones at Jeep dealers?
Thanks