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Thanks for the response. Ford Performance isn't getting back to me - I did try to check with them first. We've totally pulled apart the harness to check wires, check pins, etc. and have found...

Current and commanded gear are always park, even when we are going 40mph. We think this is why we cannot get it to shift beyond 2nd.

This is a new 3rd gen coyote crate from Ford with a 10r80.
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