I recently had my Trans built and while I was test driving it down my builders street every thing went fine up until 6th gear. I felt a little slam and then it threw a code P0729 saying the 6th gear ratio is incorrect. We called up where we ordered the kit and they told us that is 2nd gear and 4th gear we're working fine since they make the 6th gear then it must be a solenoid but I'm also being told it can be that the builder might have built it wrong. Just looking for some kind of clarification on this and where I can start to troubleshoot this code and what steps to take before I have the builder rip the trans apart all over again.
