Will an evap valve cause your car to stall?

Yes, a faulty evaporative (evap) valve can potentially cause a car to stall. The evap system is responsible for managing fuel vapors, and if the valve is stuck open or closed, it can disrupt the air-fuel mixture, leading to engine performance issues. However, stalling is more commonly associated with other issues like fuel delivery problems or ignition system failures. It's important to diagnose the specific cause of stalling to address the issue accurately.