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tom.mcinerney
10-04-2003, 18:12
Can anyone identify the wires to the PMD? I see one grounds to the pump cover, two output to the fuel solenoid. I would like to know where each of the others go, by insulation cover color. Referral to a link, or a reprint article/year would do fine. I have the Helm emissions manual, and couldn't find its wires there.... Thanks.

ucdavis
10-06-2003, 12:58
Helm manual has pictures of the connectors (drawings actually) that identify the pin functions, from those you can divine this info- I think. The 2 that go to the fuel solenoid are red (solenoid signal) and black (ground, this combines w/the other black one in the harness which is also ground).
I can't remember if the FSD connector was in there or not, but it is discussed in the Engine Cranks But Does Not Run diagnostic chart.
This from the '98 Workhorse manual:
Pink- ignition voltage
Red- fuel solenoid high
Black- fuel solenoid low
Green- fuel solenoid control
Red- closure signal
Black- closure ground