won't start...advise?

[mj1pate]

We made it from Houston to Maryland after a single stall event in Houston. Before the trip. we went through some water deep enough to spray up through the fender wells and the car died shortly there after. I suspected water issues at the time, but the next morning we found the positive battery cable loose and tightened it. The car started up and we launched our trip.

After making the 1800 mile trip Maryland, my son was washing the car and it failed to start afterwards. I'm beginning to sense a water connection. Here is what we know:

1) the tank was filled up yesterday and run most of the day on that tank.
2)The DME relay guts/components look "good". No scorched diodes, resistors or cold solders evident.
3) The distributor cap insides seemed dry.
4) Removing the DME relay and cranking produces no power to the fuel pump fuse when cranking
5) Installing the DME relay and cranking produces a) power to the fuel pump fuse and b) spark visible via a timing light
6) But the engine does not catch and start up after cranking
7) I can smell gas while cranking, but can't tell much about fuel delivery beyond that.

What should we check going forward?
Is there a convenient way to attach a fuel pressure gauge to the output side of the fuel pump?
I noticed that the DME relay had 2 poles. One was for the fuel pump. What is the other pole for?
Are the schematics on line?

[tcar]

Is this for the '88? You don't say.

Only ADVICE I have...

Advise that you check the plug wires? Coil wire? Suseptible to moisture. Start at night or in closed garage w/ door shut. Spray mist (windex bottle) on wires, see if you get blue sparks.

How about the coil?