We have a 02 accord automatic 100,000 miles. Signs at first pointed to the transmission. We got the code P1751 We lost reverse. No issues with going forward and its a hard shift more than a slam. Even when pressing on the gas, no reving. We changed all the solenoids, some of them were clogged bad. Once we did that we still didn't have reverse but the difference is when we put it in reverse and put gas to it, it reved up. Any other ideas on what it could possibly be?