i have these 3 wires on my 87 volvo 760 turbo. They goto the hall effect sensor. Im getting no negative pulse from the - coil, and just no ground at all there. I am getting 12 volts at the + side of coil though. So i read to check the hall effect sensor inside the distributor, then later i read how to test the hall effect with the distributor in, just by checking the 3 wires that connect to the hall effect.
Red is supposed to have 12 volts-mine is
blue is supposed to be 5 volts- mine is
black is supposed to be negative- mine is.
So this mean my hall effect sensor is bad?
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