328 not starting after dead battery

It is not unheard of for a fuel pump to die like that. If you have power at the pump and no pump, then replace the pump. This alarm you speak of, some aftermarket arrangement? I would remove all of it. I have never had a customer come in and tell me how his alarm saved his car, I have however had them come in and complain that the d@## thing won't start and it was there alarm system. I like to tell customers with aftermarket alarms that the only person not driving your car because of the alarm is you.

 

Erm...yeah. Aftermarket alarm = all bets are off on whether it's a dead component or an issue with the alarm.

You need to completely isolate the fuel pump from the electrical system and test it manually.

 

I doubt that they wired the alarm into the fuel pump circuit. If you can hear the fuel pump relay click when you move the air flow meter plate, then the system is working as it should. You either have no power/ground at the fuel pump, or the pump is dead. After a prolonged sit, bad gas has probably killed the pump

 

Agree, but the OP may be hearing just the start injector relay actuate during that test (his original post said "could hear a relay click" when both of those relays should click). An alarm wiring/switch couldn't be added into the fuel pump circuit directly (as the current is way too high for any ordinary switch), but it could be added between the start injector relay and the fuel pump relay to enable, or disable, the start injector relay's control of the fuel pump relay.

OP - one other easy test is to remove the fuel pump relay and use a jumper wire to connect the female 30 terminal in the relay socket and the female 87 terminal in the relay socket:
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If the fuel pump still doesn't run, confirm/deny if there is +12V on the jumper wire when it's in place: If not = you've got some fault in the upstream +12V supply; if +12V is present, but no fuel pump operation = then you've got to get to the fuel pump itself to confirm/deny if the +12V is getting there, and if it is (but no pump operation), replace the fuel pump as Motob suggested.

 

Yeah, What he said.

 

Not strange at all that the pump would seize. The pump uses the fuel as a lubricant. Once the fuel has completely dried out, the pump will rust weld together, and likely blow a fuse. I would also drain the old fuel out of the tank, because it likely has varnish that will clog the entire injection system.

I've long argued against letting these cars sit, because you will get problems like this.

 

Be sure to check all of the connections at the fuse board located in the passenger foot-well. It’s one of the few achilles heels in a 328. Corrosion at one of these connections caused a no-start condition similar to yours and drove me crazy for a week.