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tholyoak · 01-26-2009, 06:51 AM

The DME isn't receiving a signal from the crank sensor. Either the sensor has failed, there is a wiring issue or your DME has failed. Also could be possible the flywheel has lost a significant portion of its teeth but that is pretty unlikely.

To test the sensor, disconnect it at the motor and measure across pins 1 &2, it should have 0.8-1.0 kohm resistance at around room temperature (20 C). Across 1 &3 it should be open. If not the sensor is bad.

If the sensor is OK you need to test the wiring between it and the DME.

-Todd

01-26-2009, 06:51 AM	#11
tholyoak Registered User Join Date: Jan 2006 Location: Glen Allen, ON Posts: 314	The DME isn't receiving a signal from the crank sensor. Either the sensor has failed, there is a wiring issue or your DME has failed. Also could be possible the flywheel has lost a significant portion of its teeth but that is pretty unlikely. To test the sensor, disconnect it at the motor and measure across pins 1 &2, it should have 0.8-1.0 kohm resistance at around room temperature (20 C). Across 1 &3 it should be open. If not the sensor is bad. If the sensor is OK you need to test the wiring between it and the DME. -Todd __________________ Current Cars: 1989 911 Targa 1984 944 Original Owner 1971 911T