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Discussion Starter · #1 ·
I did an RN and manual swap on my 94 850 and the trip computer is dead where does it get it's information from ? I have tried the old ECU and another one from an manual 95 850 turbo but no joy, I have checked the wiring diagrams but they tend to get me more confuselgated
 

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Discussion Starter · #6 ·
yes kind of odd- I thought it was my ecu as the new one wont talk to the OBDii but it doesn't work with the old one- but then I get transmission errors
 
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