Skip the auto shop - Our mechanics make house calls

Q: Car hesitates, bank one and bank two too lean. 2001 Hyundai XG300.

asked by on

When I drive, the car sort of hesitates like it's not getting enough fuel. I've done several repairs on the car, including spark plugs, fuel filter and air filter replacement, along with the wires and coil connectors change. I went to get the code read and the error codes indicated that bank one and bank two are too lean. These codes keep appearing each time I test the car. What might cause this and what can I do to improve the performance of the car?

Hello there. This is a common issue with the 2001 Hyundai XG300. There are a few possible causes for the engine to hesitate. The most common are the spark plugs, vacuum leak, oxygen sensor, fuel pump, exhaust leak, fuel filter, or air filter. When bank 1 and 2 are lean, it means that the engine is either not getting enough fuel or air. All of the listed faults could contribute to the symptoms you are experiencing, but diagnosis is needed for an accurate answer. If you would like help with this, a qualified technician from YourMechanic can come to your car’s location to diagnose the hesitation problem and let you know what needs repair.

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: 2000 chevy hard to start when hot.

There are two different types of fuel injection on these engines, the one where the injectors are inside the intake manifold had major issues with the fuel injectors sticking closed or leaking when hot. This fault will cause hard starts....

Q: There's no power to the whole fuse area.. including the horn and car won't start.battery is good.could this be a dead alternator?

Hi There, I would start by checking the connections to the battery to be sure the cables all have proper connection to the battery as well as the ground. Additionally, check the power to the fuse box to determine where...

Q: Driver seat slight bump when braking

There are a few different possible causes for the seat to have some play in it. There could be a loose mounting bolt, a seat anchor that has separated from the floor, or the cause that I'm seeing quite a...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.