Pop N Wood

iTrader: (1)

Do yourself a favor and hook the voltage sensing wire up to the alternator. You running an unregulated alternator. Your volts are probably dropping to 8 volts when the blower motor"drops hard".

bad67ls

iTrader: (2)

never gets that low...but close to 12 on my gauge and multimeter. which is the voltage sensing wire? does it need a resistor? (this is basically my origional question that has had no clear answer)

1970camaroRS

iTrader: (8)

In the other thread there was this answer, But I think he was talking about the 4 pin.

bad67ls

iTrader: (2)

maybe we should just swap out to the older 4 pin style since no one seems to know for sure? i'd rather not do it wrong and smoke the alt...and maybe my car lol

toxic99

Lol looky there what I said on page one.... and no it is for 2 pin

Basically you need the voltage sensing wire so the alt will regulate the voltage.

toxic99

just go to radio shack and buy some 470 ohm resistors and wire it to brown wire and then to switched 12v

bad67ls

iTrader: (2)

there is no brown wire. a red and a grey...now what do i do? lol

toxic99

red then

Because Gray is the Field Duty Signal so that needs 12 volts (Ign on). Since you don't need the gray at all with carb setup, do the red with the resistor to 12v ign.

bad67ls

iTrader: (2)

I did red with resistor grey without both to switched 12v. Seems about the same charging wise. Whatever i guess it will do untill it breaks lol

toxic99

Dont need the gray at all for carb setup so...Im assuming you had alt checked out to make sure it is working properly?

3pedals

iTrader: (3)

Is the idiot light enough of a resistor to just connect the OEM excite wire to new style alternator?
I was using a resistor w/ switched 12v, but I'd like the idiot light to work

Gray86hatch

iTrader: (83)

dad put 5000 miles on his car with AC never had to charge the battery all summer.

We just have the 1 wire hooked to the battery.

I have EFI on the car now I need to hook the lap top up and look at the voltage but I drove the car all weekend didn't seem to be loosing any ability to start the car.

Tim