In your first post you mentioned a problem with evaporative emissions lines. Exactly what is messed up? Although you are not getting any DTC error codes or SES/CEL light an evaporative emissions problem cause cause the engine to stall, especially if there is a vacuum leak. Also, what condition is the fuel return line at the fuel pump pod? There are three lines at the fuel pump pod. Fuel pressure, fuel return and tank pressure going to the pressure switch used to test evaporative emissions.
DOH!!!!
The line that is broken is the middle line that would be the tank pressure that goes to the evap system. the line leaves the fuel pod as a small 1/4" line then "t's" into a larger 1/2" line that goes to the other pod in the tank and to the evap canister. I had asked the GM parts guy about it and he told me it would just throw a code, but if this keeps pressure in the tank which in turn allows the fuel pump to not run at full tilt 100% of the time that would explain why when I "pump" the throttle it will stay running as the PCM is probably telling the pump to get with it and send some fuel. I suppose I will try fixing what I broke then look for others if not the problem. bad thing is they only sell that "t" thats broke as a line set of all 3 lines @ $110
If you would like I can email you the electrical fuel schematic I got from alldata. For what it is worth I think 1 of my main problems from the get go was the Crank position sensor after replacing that I at least get fuel pressure other than the prime and whatever the car could vaccum out of the line before it died.
Good thing working on cars is fun.......right!!!! I sure do miss my old Nova and chevelle.