Stalls after start up And it has a p0340 camshaft position sensor circuit malf

pin 1=5 volts positive ignition on pin 2= earth negative,ground pin 3=0-5 volts switching voltage engine turning

You should really check the voltages on the pins using ground as a reference. That will give you better information. Since you replaced the sensor the wiring between the sensor and the ECU is suspect. Make sure that the 5 volt power is getting to the sensor.