Quote:
Originally Posted by myarmar
I think you need to get a scan of the live data with the real MB scanner. The generic OBD2 probably expects to see second bank O2 sensor from the same ECU, but in case of the M120 V12 it is not the case. You maybe trying to fix something not broken.
Mike
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Interesting thought. For what it's worth, the function diagram of the ECU's and all their inputs and outputs shows the OBDII connector associated only with the left side ECU (bank 2). The 38-pin diagnostic connector is associated with both. Now, it's possible that is just an oversight in the diagram. But, you may be right, Mike.
Still trying to find the great section that I read on alldata last night about changing ECU's and coding them to the car, etc., etc. I want to re-read it, and I can't find the damn page again. I expected it may have insight into swapping the ECU's.
Brett