Quote:
Originally Posted by Fairtax4me
I hadn't noticed that before, but it does have a 4th wire. It connects to the solenoid on the same pin as the start wire from the switch. Something to tell the regulator to turn on or off possibly with the start signal from the key switch. Or it could be a second sense lead to bump up charge voltage when the engine is at idle.
A quick search didn't turn up anything, but I'll do some digging and see what I find out. I'd also like to know, now that I know it's different than the pedal carts.
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Did you find any info on that 4th wire Fairtax??