It comes on when you touch fuel petal sometimes. Can JD use scanner to find problem?
Not on a 410G. Did you check the reverser oil level? Check it idling and warmed up. Also, check the E02 White wire at the starter solenoid. Make sure the connection is clean and tight. If that wire loses its connection, then the park brake will apply. Stepping on the throttle will cause the engine to torque in one direction, so that movement might be transmitting into a loose white wire, breaking the connection.