Quote:
Originally Posted by Jacques Reed
Wiring diagram states:
"No. 45- ignition switch to lead from Autopulse pump"
"No. 46- Autopulse switch to Autopulse pump"
Could not understand why there would be two leads to the Autopulse the way it read.
I believe No. 45 may just be a jump to the input side of the Autopulse switch as per attached diagram. With that arrangement one cannot run the Autopulse without having the ignition switch on. This would be a good safety feature. One can still start the engine without having to run the Autopulse, a valuable feature when not needed. It sounds very simple and perhaps that is all it was.
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I agree that it was meant to ensure that the pump was only intended to be operated with the IG on. The wiring could also have been a peculiarity of Positive Ground wiring, although that shouldn't be an issue unless the pump body grounds out.