I have an 89 dodge dakota 3.9l. The engine turns over, but will not fire. Problem seems to be intermittent. When not firing, zero voltage at coil. What is causing this? I started my truck 20-30 times this afternoon with no problem... now won't start. Accessories always work OK though.

Wire somewhere is possibly shorted or a relay is bad.. try checking those out first and answer back.. might have more for you

Where can I get a wiring schematic to help trace out?