88' 5kcstq no start/run update

["Ken Keith" <auditude@neta.com>]

Hey all,

I just worked a little bit on the '88 5kcstq I have that either won't 
start or stay running if it does start.

I changed the plugs, and checked for spark.  It has spark.  Also, 
for all the electrical connections I see around the top of the engine, 
back of the head area, I pulled them apart and connected them a 
few times, to break up any corrosion or nastiness.  I did not use 
any kind of contact cleaner.

Also, I checked all fuses, and looked underneath the fuse box, 
looking for something wrong with the connectors that the fuel pump 
relay plugs into.  I discovered that the fuse block seems to be a 
sealed box of some sort, with the connections I was looking for 
inside of it.  On the bottom, there are a bunch of harness plugs 
which go into the box.  Except for under the fuel pump relay.  There 
was only one wire connector underneath the fp relay location, and I 
made sure that it was connected well.

Should I actually go inside that box somehow, and look at the fp 
relay connections?  If so, how do I get inside the box without 
damaging it?  It seemed like it would break if I messed with it too 
much.

I noticed that when I try to start it for extended periods, I do NOT 
smell any gasoline at the tailpipe.

I have replaced the fuel pump, and the fuel filter under the hood.  
So, I'm thinking since I have spark, that there might be a problem 
on the fuel side.  Steve B. suggested I look at the fuel pressure 
regulator in the fuel distributor area.  What do I look for?  Should I 
just start taking it apart and looking for something awry?  Like 
what?  I do have an (early) single volume Bentley for the car.

I didn't have any appropriate wire to jump the fuel pump relay, so I 
stopped short of that.  I do need to know if I'm supposed to jump 
the "30" terminal to the "87" or the "87a" or both?  Or, maybe I'm 
supposed to jump some totally different ones?  Please advise.

Thanks again,

Ken