Hello everybody, I have glow questions and a few people told me this was the place to ask them.

I'm working with an '84 Isuzu 1.8 liter motor, but I've been told this glow system is the same for all Isuzu motors.
Glowplugs are new.
The glowplugs stay on for less than a second then switch off. The relays are good. The sensors are good as far as I can tell, as unplugging them makes no difference. The sensor by the thermostat is good, as when I disconnect it the glow system doesn't engage at all. The only thing left I can think of is this QOS box. I tried to order one from an Isuzu dealer, but the car the motor is in is not an Isuzu, and the dealer had never heard of a QOS. I did a search here and found a few posts stating there are schematics somewhere for bypassing or building a new timer module, if this is the case I would greatly appreciate instructions or advice on what to do now. I have switches, I have rheostats, I have wire, etc.

Thanks for your time and any help you can provide me!