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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Door ajar warning on, interior lights on - 2014 BMW X1

Hello. The body control module (BCM) controls the interior lights for this vehicle. The BCM gets inputs for the interior lights to come on by any one of the door switches or the interior light switch. If any one of...

Q: My truck has a violent shake, rapid onset, massive white smoke, increases shaking with turbo charger pressure increase, and has an error code of p0303.

Hi there. If you are having a misfire on cylinder number 3 and the injectors are new with the fuel lines cleaned out, then the exhaust valve is burned on cylinder number 3 and needs replaced. This is why there...

Q: P0008 error code is shown

The P0008 code you are receiving is telling you the camshafts and the crankshaft are reading that they are out of sync. The computer will run tests on the alignment of the camshafts to each other, and with the crankshaft....

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.