cylinder 5 misfire

Question

i keep getting cylinder 5 and ignition coil 5 secondary engine codes but ive already changed the spark plug and ignition coil and no fix. he said my injectors were pulsing that the rate they were supposed to. the day before this start i was on E and got gas. could bad gas cause this issue?

Answer 1

P0305 Misfire number 5 cylinder

When there is a misfire condition it means that particular cylinder is not contributing , Since the ignition coil and sparkplug,  the injector is suspected , If the fuel ran low or bad fuel you mainly would set a random misfire condition, or a lean code condition, Since the fuel injector  is easy to remove , swap out cylinder 5 fuel injector with a known working fuel injector and if the misfire moves with fuel injector replace the fuel injector