I have a Buick 455 with a 4L80E running on a LS 411 ecm. I am using a Grand National distributor that I have cut half the "hat" so it gives a signal of 180 on and 180 off. It runs good but will set the cam signal high error after it runs for a while. Any idea's why? I have looked high and low and can't find the information on the signal output on the GN sensor.
Mike
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