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Discussion Starter #1
well the car has a rb25 with a rb20 auto box.
the car fires up fine but when you drive it, it stays in 1st gear and doesnt change automatically.
if anyone can help me what to do to resolve this issue or perhaps show me where i can get the rb20 auto gearbox wiring diagram??

somehow it has to connect to the ecu somehow to know when to change gears etc.
hope you guys understand what i mean & can provide me with some information to get my car completed.

i also need rb20 auto g/b wiring diagrams too if possible :)

cheers
 

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First question is did it ever work, i.e. are they compatible in the first place?
If they are compatible and the wiring is intact and all connected then there is component failure which you will never diagnose without Nissan test data. :)
 
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