97 Astro with new fuel filter and pump. Plugs,wires and cap! Still won't start. DEaler says that it will need a spider assembly. They say its leaking. However when you take the cover off from the inside you don't smell any gas...any suggestions? Also if it is the Spider assembly and I am able to get one off a wrecked/junked one will i have to buy any thing else that i won't be able to take off the junked? Ie; O rings....

Air filter, fuel filter, fuel pump, injector/s, plugs and wires, cap and rotor. This is what you would call a complete tune up.

Check if the spiders are bad... I May be off a year with application but if the spider was never replaced you are due. spider is the part that plugs into manifold to each intake runner for fuel injection, The plastic tubes get brittle and start to dribble. when one or more brake you get raw fuel not atomized fuel.

If you replaced the injector after the plugsthey may be fuel fouled.Pull the plugs and clean them.(you can sandblast them,or use a method I used to use-shoot a little starting fluid on them and use a lighter to burn off the contamination of too much fuel).I can't believe GM kept using this stupid design so long-I remember nearly new Vortec V6s with this same problem in the '90s.

what is the fuel pressure with key on and engine off? since you mentioned spider injector assembly it has to be a vortec engine that requires 55psi to open the poppet valve in the injectors just to start.

The fact the fuel pressure does not hold after the pump stops is a big problem indicating a fuel leak into the upper manifold, which would cause the flooding. This leak could have several causes, but since the problem is still there after replacing the regulator, it sounds like the problem is with the injector in the spider assembly.
It sounds like you have a design 1 spider assembly, with only one fuel injector distributing fuel to the six poppets. If that is the case, I suggest you try replacing the entire assembly (which will include a new regulator) with the Delco design 2 version which has injectors on each poppet.

Have you read any of the codes

first thing to do change fuel filter. if it still does not work check pressure on fuel pump. possibly bad distributor or rotor cap

When you replaced the fuel pump, did you have you switch to the new harness? Check your wiring.
Could it simply be a relay?
My dash gauges went nuts but the car runs.
Do you hear the fuel pump running?
Did you replace the fuel filter? Should be on the frame under the driver.
Bosch fuel pumps are the way to go. The ret seem to **** out after 60,000.
Good luck.

time to buy a new van.. umm what about the alternator?

Needs Crank sensor. Good luck