Skip the auto shop - Our mechanics make house calls

Q: Fuel rail sensor faulty or fuel pressure too high

asked by on

Fuel rail sensor, too high fuel pressure.

My car has 151000 miles.
My car has an automatic transmission.

A: Hello there, a check engine light for too h...

Hello there, a check engine light for too high of fuel pressure is unusual with your 2009 Audi Q5. There are one 2 possible faults going on. Either the fuel pressure is too high, or the fuel pressure sensor is reading faulty. If the fuel pressure is high the most common faults would be a kinked fuel line, faulty fuel pressure regulator, or clogged fuel filter. If the sensor is reading wrong, it could be the sensor itself or a wiring harness fault. A qualified Technician such as one from YourMechanic will be able to diagnose your fuel pressure issues and make any repairs required.

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・Save up to 30%

Get a quote

What others are asking

Q: Tires losing air

If you have chrome plated wheels, corrosion can build up much easier on chrome plates than steel wheel or alloy wheels. Corrosion is also common on alloy wheels. A puncture in the sidewall of a tire is non repairable unless...

Q: My front brake lines bleed not my back ones.

You may have to activate the rear anti-lock brakes using a scanner or using a special tool to hold the combination proportional valve open while bleeding them. You can try a vacuum or pressure style bleeder to see if it...

Q: My car will crank but will not start.

Thanks for writing in about your 1994 Buick Roadmaster. There are many things that can cause a no start condition. You may want to have this thoroughly looked at in person by a professional before moving forward with any other...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...