X2 with the fuel problem..
It might be the filter. Good luck on the fix bro..

Does it have cats. If the tune is off it could have mega toasted them.

yes i changed the filter under the cab, no cats either. i just got home from work so i didnt have a chance to check the fuel psi, or use the scanner ill get it all done tomorrow night. think it could be a bad fuel pressure regulator? and my current tuner has not had a chance to see any logs from the truck all i have gotten from him is a mail order tune. he is sending me logging cables soon so if i dont get if fixed from yalls advice before then maybe he will she the prob. i will report back with the results tomorrow.

Good luck man. Hopefully you get it figured out after almost 3 years.

fuel psi, is at 58psi idleing the more gas you give it the lower it goes. when revving it drops to about 50-52 and holds it there.

You should be around 48-50 PSI idle with the FPR pluged in. If you un-plug it, it will go up 10 PSI from the base. Under load as the vacuum drops the valve allows more pressure to compensate for the added demand for fuel under load.

If I am not mistaken it works like a bypass. It's open under idle to allow the fuel to flow back. as the demand for pressure increases it closes and restricts flow back to the tank so it does not lose the pressure it needs to maintain fuel demand.

So mine is working opposite of what it should?

Yours works as it should, but your testing procedure is questionable. Base pressure, 58 psi, is the pressure you get with the key on, engine off. It is the same as the engine running and the vacuum hose disconnected. Pressure should be about 52 at idle.
Other than those two situations, the numbers that you get sitting in the driveway working the throttle are meaningless.
The third pressure that you need to test is when you are at full throttle and maximum load. It should be close to 58 psi.

Good point

fuel psi drops to around 54 under a load. i replaced the tps, iac, and fuel reg, thing still runs like ass. someone give me a name of a shop i can drop this piece off to and have it fixed!!