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As previously mentioned, the following are all possibilities:
1. Power Stage
2. Timing Belt
3. Fuel Pumps
4. Hall Effect Sensor (in Distrib.)
But, you mentioned: "I go to start it back up, it turns over, sputters lightly and dies again." After reading this statement, I would assume that your timing belt is ok, but it would be good to check it anyways. It sounds more likely that your problem is a fuel delivery issue. (but I wouldn't rule out a no-sparke issue just yet)
Have you checked your fuel pressure regulator? If there is gas in the vacuum tube or a smell of fuel, then the internal diaphram has been ruptured and will need to be replaced. When the diaphram breaks, you will be dumping huge amounts of fuel into the intake manifold and flood the engine. It may sputter for a moment, but the mixture will quickly become too strong for the engine to operate. I had symptoms exactly as you described when my Fuel Pressure Regulator ruptured, and now I cary a spare unit (right next to the spare Main Relay). A new one costs $35 (FCP Groton) or $60 (Volvo Dealer), and used ones can be obtained at a parts yard for about $4. If you have doubts about your current Fuel Pressure Regulator, hook it up to a vacuum pump and put 25"HG on the gauge and see if it can hold it for 2 minutes. If it fails, check your connections for a vacuum leak and then try again. If it fails again, replace it.
Lastly, verify that your Fuel Pump/Injection relay is working. If you haven't resoldered it yet, now would be a good time. Note: 90% of the Main Relays can be returned to normal use after resoldering them, but there a few of them out there that die due to a blown solenoid and they can not be restored. (and that's why I keep a spare in the glove box)
God bless,
Fitz Fitzgerald.
--
'87 Blue 245, NA 229K
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