We have a '92 3.9l 2wd Dakota that won't start. We don't have any voltage on the dark green/orange wire @ the coil, injectors, pin 57 @ the ecm. We have tried another ecm - same problem. All fuses are fine, there doesn't seem to be any broken wires. Any ideas?
No, the fuel pump is powered by the fuel pump relay. Both the fuel pump relay and auto shutdown relay are fed by the same fuse and activated by the ECM on a single wire. From what you are saying you have a bad auto shutdown relay or an open wire to the relay.
Shouldn't the
Ignition voltage ??? Not sure what you mean by ignition voltage but the injectors and coil should both have 12 volts. These are powered by the auto shutdown relay.
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