Losing power while driving (sometimes), hard to crank (sometimes), gauges sometimes work

Problem 1. While driving down the road at a steady speed the car will act as if it is not getting fuel and die back. You can press the gas and hear the engine rev but no power. It will finally pick back up and run fine. This may happen 15 times in a 30 minute trip or may happen 1 time in a month. There is nothing consistent about it.

Problem 2. When cranking the vehicle, you hear the fuel pump kick on every time and the motor will turn over but does not always crank. This is more frequent than problem 1, but I have noticed it does this really bad the colder the temperatures are outside.

Problem 3. After the car is running, sometimes the gauges will not work. After driving for a while all of the sudden the will just start working.

Not sure if all of these problems are related, however I am about at the end of my knowledge on what to do from here. It has never throw any service engine light or codes. I have changed the fuel filter, fuel pump, cam position sensor, crank position sensor, plug and wires, coil pack, and even had the cat cut off. Tested every fuses, relay, sensor and battery. I have talked to every Chrysler Service center in my area and the general consensus is, if it is not throwing a code and you have done all of this, the best thing to do is find an older mechanic who worked on cars back then and see what they say.

After busted knuckles and a lot of head scratching any help would be MUCH appreciated!