I am at a vice here. I am using FSUIPC 4.977 with FSX. I build a throttle quadrant with 2 fuel cut-off levers, below the throttle levers.  My controller board is a Leo Bodnar BU0836X. I am using offset 66725, parameter 1 for lever 1 (on press) which start engine 1 and the lever on screen moves in the up position and start engine 1. But when I use offset 66725, parameter 2 for engine 2 it starts engine 1 and no movement on the engine 2 cut-off lever. So I delete the config of engine 2 fuel cut-off lever. Doing a test, remember no config on lever 2 but when I flip lever 2 engine 1 try to start as if there is a invisible link between them.

I looked in FSX controller panel and delete all joystick events, I even unselect "enable controllers". But can't get engine 2 fuel cut-off switch to work. I am a bit rusty on this and help is appreciated. When you hover with your mouse over the fuel cut-off levers the info tip display "Master starter switch"

First off you may want to upgrade the 737 default cockpit switch setup by installing this upgrade.    defaultimate737.zip

Not available in our library here but at flightsim.com.

Thanks Charlie

Hi Charlie, I download the file, it look as if this update is for VC. I only fly 2D.