first off its a 305 with speed density TPI, prior to it doing this it started up and ran fan, so I doubt I'm dealing with fuel pressure as the pump was replaced prior to all this happening.

it usually fires right up then dies immediately
has vats delete
sometimes pumping the gas like its a carb keeps it running
even when sensors are unplugged I still get code 12
code 12 isnt sounding right is it when sensors are unplugged
recent tune up
no vacuum leaks

I'm about ready to ditch the tpi and run a TBI system that I know works perfectly TPI just hasn't been a good choice, another thing that used to happen prior to this when car was idling the pressure would be at approx 45psi but when the engine was shut off fuel pressure would drop immediately, maybe just my pump went bad but how after only 50 miles, it is acting like its starving for fuel though, it used to run at like 1500rpm till warm but it hasnt done this since the car started doing this

can anyone post a fuse box diagram for a 1988 trans am with TPI and a 350

thanks