Will cam sensor on 2004 xc90 cause car to shut off while driving are not crank?

Yes, a faulty camshaft position sensor on a 2004 Volvo XC90 can cause the engine to shut off while driving or prevent it from starting. The sensor is crucial for the engine control unit to determine the correct timing for fuel injection and ignition. If it fails, the engine may not run properly, leading to stalling or no start conditions. It's advisable to have the sensor tested and replaced if necessary to ensure proper engine function.