Greetings,
ECU is in a 80 Porsche 911 SC - direct spark, cam and crank sensors. Crank sensor ( trigger1 ) shows signal, Cam sensor shows none. However, the cam sensor ( trigger2 ) shows Status signal, but the scope does not see pulses. Cam sensor is Hall, have tried with/without pullup resistor, Edge as rising and falling, never can get pulse from Trigger2.
Since the ECU is not getting a sync, no spark during startup. Wondering if the weak(?) signal from Trigger1 is not meeting the Arming Threshold, therefore ECU does not provide spark.
