Weaver Fa2 help needed

I am trying to use a Weaver Fa2 with a Lionel 132 auto stop station. The problem is the engine does not stop , only slows down. I have tried using a kw and a cw80 transmormer, same result. I have used a Lionel 626 Hudson jr., which also has a can motor like the Weaver, it stops and starts fine. The E unit on both engines have been turned off. I have tried adjusting the station setting with no success. Can any one help?