Combat Arms - Accelerator pedal in vehicles does not work

[A.F.]

Hi,
I have tried the CA in 2.7.
It's a great thing to drive around the airfield with a Jeep!

But:
After I stopped the the vehicle in front of my Tomcat and got into the plane via F10, I wanted to get back into the jeep via F10.

This also worked, but I could not speed up the vehicle with the Controller for the Accelerator pedal of the Jeep. (I have connected my left rudder pedal for it.)

The first time I Drive around it still worked. But after I came back from the tomcat, it didn't work anymore.
All attempts failed - bind another controller - key "w" - dcs restart - make a new mission - nothing worked.

Does anyone have a solution?

[A.F.]

Problem solved
I have to put a gear first