P0305 is a specific code for the cylinder 5 misfire, since this code in the 5th cylinder, that means it only applies to v6, v8, and v12 Engines. The higher the power levels the more apparent hardware weaknes. I have gotten somehow similar experience.īy bad gas i mean non-top-tier-91-octane-rating! Costco!!Īdd a bottle of Techron injector cleaner and monitor it along with your troubleshooting. injector, or if the misfires happen across multiple cylinders could also be an o2 sensor or high pressure fuel pump. It can be a bad gas that triggers a weak component to go bad in your engine. Can it be bad gas? I have already put in a bottle of Heet in I have swapped a few coils around and even spark plugs, but i get the same codes back. It seems that 5 is the only one misfiring, but it is telling me others are as well.
2EF3: Misfire, Cylinder 5: Damaging exhaust gas after starting up 2EE2: Misfire, several cylinders: damaging exhaust gas after starting up 2EF1: Misfire, Cylinder 5: Fuel Injection deactivation 2EE0: Misfire, several cylinders: Fuel Injection deactiviation 2EFE: Combustion misfires, several cylinders detected 2FAC: Ignition, Cylinder 5: Combustion period too short When trying to start up again later in the day, the SUV immediately went into limp mode.Īfter scanning it i came up with these codes I have replaced the Low Pressure Fuel Pump, the injectors in Bank 1(1,2,3), the 6 coils, and the 6 spark plugs, valve cover gasket, along with the valve cover itself.My wife filled up at Speedway and drove around for say 10 miles and later parked. I got an check engine light.Ģ9CC - DME: Combustion misfire, several cylinders.Ģ9D0 - DME: Combustion misfire, cylinder 4.Ģ9D1 - DME: Combustion misfire, cylinder 5.Ģ9D2 - DME: Combustion misfire, cylinder 6.Ģ9D9 - DME: Misfire at low tank fill level.ĢFBE - DME: Fuel pressure after engine stop.Īfter a few minutes at idle, I just restarted it, and it drove normal. This morning it rained, so the car was colder than usual.
I notice it is more prominent when it is colder, in those cases after the engine warms up the problem goes away. pack or worn spark plug) An engine misfire simply means lack of combustion. Well cover all of this in the next section. This is because a cylinder misfire can occur as a result of many reasons. A misfire isolated to cylinder 2 indicates an issue with that cylinder specifically. It usually goes away as soon as I start driving, and doesn't come back until the car has been sitting for a while. Several misfires indicate a broader problem.
I been having an slightly rough intermittent idle issue on my N54 engine.
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