A Bosch rotor will have a 5000 Ohm resistor between the center contact and the side pole. The world is full of off-brand replacement rotors though, and these cars are old. It is possible that an aftermarket rotor with no resistor has found its way onto the car. They have only a few Ohms of resistance.
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Originally Posted by dbltrbl
How many ohms between rotor center and rotor side pole (dont know what its called).
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