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Hi! i recently got an awesome 2005 legacy wagon automatic with i think 4eat system. got it with a blown engine, rebuilt the engine and its awesome, but i get the error code P0720. everything works fine, it just shifts a bit hard sometimes or runs real high revs before it shifts, but everything else is normal. check engine light is on and cruise blinks along with sport. manual shifting mode there is no problem, and it's totally fun!

 

read that the p0720 code is the speed sensor circuit and replacing the sensors in the gearbox requires a whole sensor wiring harness. there isn't much info about the swap or people having resolved the error code.

 

anyone have an ideas, or a way to figure out what is really broken?

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