installing VEMS V3 on BMW engine M73B54
I'm using crankshaft sensor VR with 60-2 tooth and waste-spark ignition
I have issue with the crankshaft sensor. During cranking I can't see any readings from the sensor.
- What is DC voltage measured on EC36/pin27 ?
- I test the sensor with othere electronicks and it is ok.
What setup do I need to make to the ECU?
I directly connect the sensor to the VEMS on PINs 26 (GND) and 27 (VR +). I test it in both directions (I swap the two wires on pin 26 and 27) and no improvement.
- seems OK, but read on
Ground connections ?
P259 outputs are OK ?
- sometimes insufficient GND kills p259, which prevents LM1815 +5V (symptom is no trigger pulses seen)
- in that case fix harness GND, remove or replace p259
See also MembersPage/MSeventyThreeVeeTwelve