Skip the auto shop - Our mechanics make house calls

Q: Check Engine Light with codes P219B and P0305

asked by on

Only had this 2014 Mustang GT 5.0L / Automatic 6 speed with 11,550 miles for one week. Yesterday the check engine light lit. I put code reader on and saw codes P219B and P0305. I attempted to clear codes but check engine light and codes came back. There is an ever so slight 'miss' at idle but engine seems smooth above idle. How serious?

My car has 11500 miles.
My car has an automatic transmission.

A: Hi there. The first code denotes an air fue...

Hi there. The first code denotes an air fuel mixture ratio concern; and the second code, P0305, is a misfire detected on cylinder 5. There are several possible causes and both codes could be a related fault. An ignition coil, spark plug, wire harness, MAF sensor, or mechanical fault could be causing the codes to set. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. YourMechanic has several available technicians that can assist you with a Check Engine Light inspection so that this can be addressed accordingly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car won't start

Hi there: Typically when the doors are unlocked, manually or with the remote access, it will deactivate security measures and allow you to start the vehicle. However, it's possible that this didn't occur with your Chevrolet Malibu. The best way...

Q: Horrible acceleration, horrible fuel mileage, and misfire codes.

Hello. First task is to extract any problem codes, whether the Check Engine is set or not. There are many things that can cause the symptoms you describe: injectors stuck open, or fuel pressure too high, coolant temperature sensor malfunctioning...

Q: Engine light is on and will not hook up to diagnostic machine - 2003 Chevrolet Silverado 1500

If the engine stalls during travel, it can cause a hazard for other drivers on the road. If the vehicle does not run, your son should not drive it any extended period of time. The issue could very well be...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.