[Max Lobovsky]

You mean the solenoid is not switching states at all? Well in that case, there are basically 3 places you need to check for failure, and they are all pretty easy to check.

Your input (joystick, whatever) - use dashboard or printf's to check wether the input is actually being inputted

Relay (Spike) - if the light on it is switching from orange to either red or green, you are good. if not, check fuses and the signal cable from the RC

Solenoid - there is an indicator light on at least some of them that should go on and off. If yours doesn't have it, well... well if the other two things are not broken, the problem is probably here... Also, make sure its actually getting pressure to its inputs.


EDIT: I reread your post like I should have done before posting this and realized I am probably not helping you. IIRC, the stop should not be there as it is the 2nd exhaust. Maybe the solenoid is just broken?