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Re: 1999 Mack ch613 vmac timing sensor wiring
Posted to HD/Fleet Forum on 8/16/2018

From memory, isn't the timing sensor locate on the diesel pump, the wiring around used to give issues. So the pins for the sensor are blank at the ECU have you confirmed this by continuity checking the wiring from the sensor to any of the terminals on the ecu ... Login to read more.