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Read Codes PO731 and  PO732 .  Will not move in drive and there is a  check engine light displayed.
I was hoping to get a list of troubleshooting tasks from most to least likely.  Also any suggestiions would be appreciated.
So far I have I have changed the ATF still the same issue.
Vehicle: 02 Subaru WRX 2.0 AT

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P0731 Gear 1 incorrect gear ratio

P0732 Gear 2 incorrect gear ratio

Will start from least to most likely, and these are compatible cause for a P0731 and a P0732 , throttle position sensor , front vehicle speed sensor, torque convertor turbine  sensor (input speed sensor) , the most likely is a internal mechanical condition with the transmission. such as a failed transmission pump to its torque convertor.

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