Quote:
Originally Posted by compu_85
I wonder if there's a problem in the EDS module itself, like a 5v reference power supply is dead?
It's also possible one of the sensors is shorted out, dragging a reference voltage rail down?
It doesn't seem possible to me that the cluster in the tach could work, yet the EDS computer can't read engine speed.
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I went and probed again this am.
I must have probed the wrong pins or something yesterday.
The VDO sensor spec is 1900 +/- 10%, so 1.774kOhm is good.
That would explain why the tach works.
So now I’m maybe even more confused.
Temperature sensor works, speed sensor works.
I can’t clear the L3/speed sensor code… yet it’s coming in and feeding through to the tach.
Are there any concerns with my starting and running the car with the N39 connector/EDS unplugged? I don’t have this three way special tool that the FSM requests, but I assume that I can at least verify that we get feed power on the N39 harness, and then probe the sensor feeds themselves for voltage once reconnected…
Thoughts?