Faulty Fuel Injector 4
Fuel Injector 4 harness is open or shorted
Fuel Injector 4 circuit poor electrical connection
Engine Light ON (or Service Engine Soon Warning Light)
Injector Circuit Open Cylinder 4 is the generic description for the P1240 Audi code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information
about the P1240 Audi OBDII code.