Oil pressure will fluctuate with RPM, that's pretty normal. If it is getting on toward zero at idle, but, immediately comes back up if you barely even touch the gas, that's just the sensor being flaky. (replace it.)

Unplug the 3 pin connector that goes down into the top of the valve body, drivers side, about halfway back. See if the truck will stay running when you put it in gear.

First though... Might wanna check fuel pressure. Should be right about 39 PSI at idle.

 

Ok what is the 3 pin connector and how do I check the fuel pressure?

 

3-pin connector is exactly that. Connector with three wires going into it. Plugs straight down into the top of the valve body, on the outside of the trans.

Need a gauge to check fuel pressure. Should be able to rent/buy one at most any parts store.

 

I was looking at my transmission and saw the Neutral Safety Switch was soaked in Trans fluid from a leak coming from the part right above it can it be shorted and causing it to stall ?

 

Possibly. Got a scanner that will allow you to check and see what PCM thinks?

 

No scanner and hard to get rent tools due to no truck

 

have you tried unplugging the trans to see if the problem goes away? (will probably set codes.)

Will the engine rev freely in park/neutral when you step on the gas?

 

I tried everything but does nothing but now it's has a rough/low vibrating idle and idk if it's ticking cause I have a straight pipe so it's loud and deep but will stall after a couple of min I give it gas and it stops a little but oil gauge is rocking back and forth it stay in the white lines but can see it moving idk what it can be? And code 37 is the only thing popping up but when it stalls oil lamp light comes on I'm lost

 

Wonder if the EGR valve is stuck open...... could try disabling it, see if it runs any better.

 

How would I go about that ?