Erratic running 4.6 will start and run but will lose power and shutoff

[jrford]

Thanks in advanced, i did search, some posts similar, but,
Original owner, well maintained, ran great for the last 10 years, love the truck. 180k.
What was done so far,
Replaced the fuel pump and driver module 8 months ago;
Swapped in a used motor with 90k on it, original engine, 170k, replaced due to a dead cyl.
Ran with no issues for 7 months
So the symptom is: On the way to work, It will run fine in the morning, 20 miles, 20 minutes., 80mph, Sits for the Day. On the way home 80mph, it after about 15-20 min will lose power and die. Let it sit for a few minutes then it will restart, in park Rev's to 3k. As soon as it goes in gear, it will run for a minute or two, then die, rough idle misfires. Cycle key it will repeat. Next morning it runs normal, on the way to the shop. It posted a bunch of codes to follow.
After clearing codes Shop lets it idle for a hour or two no issues or codes.

Original Codes posted:
P0191 Fuel Rail Pressure Sensor Circuit Range/Performance
p0195 Engine Oil Temperature Sensor Malfunction
p0197 Engine Oil Temperature Sensor Low
p2197 O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 1) Code
p2195 O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1) Code
p0300 Random Misfire Detected Code
p0301 Cylinder #1 Misfire
p0303 Cylinder #3 Misfire

Any ideas would be appreciated, shop is trying to reproduce it now with little luck.

 

[jrford]

Solution found. Fuel Pump driver had a bad ground. It would overheat due to the ground issue. In the winter, it never got hot enough and wasn't driven long enough for it to fail. When it hit 80degress, and driver for more than 30min, Fuel pressure would drop to 6psi. You could idle it for hours, but once it got going it would fail.