I did some digging and found the answer myself. Looks like there are 15 Engines to choose from for this Ap.
hope it helps someone else.

Do you need to have special EZ Ap Engines to make the Ap work

No it isn't but i took a meter to each peace and found the problem. For some reason part of an older track was causing the problem. Thank you for your help. I am new to this hobby and everyones help is greatly appreciated .

hi i have ez trac and have a short in the track. if i unhook the track from one side of the power track source it goes out but only have about 1/3 of the Tampa on one rail as to the other rail. any i ideas where i can look for the problem?

I have 3 new ez trac turnouts and when I back up onto them my cars as well as the Engines all either get caught or fall off. Does anyone know what i can do to fix this? 

Thank you for the info.

hi i have a certain cars that keep falling off the track. do the wheels wear out to cause this?

well i am wondering if some engines have more power to pull more cars or do you have to hook 2 engines together? I have DCC.

ok thanks for the info

hi I am new in trains. are there different powered engines or are they all standard

   Thank you very much for your reply. This info helps me.

just wondering if there are adapters or anything that you can get to hook up older trains to new ones