I had a problem with my Roadblasters. It wouldn't come out of free play. I think that the problem was you couldn't change settings in the test mode because the gas pedal was off making it seem like it was slightly pressed. In the test menu, the gas pedal's function is to reset to default and default is free play.
check & carefully reseat connector (s) from coin door going to the main board, seen this happen before and usually this will clear it up, if not do as above stated & put into self test to make sure it sees and can test the coin switches