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・Fair and transparent pricing

Get a quote

What others are asking

Q: When turning on navigation system, radio comes on too

This is a problem inside the nav/radio unit. The system will have to be tested and serviced by a dealer certified repair facility. You may have to have it removed and sent out for repair or replacement.

Q: Are water pump repairable, ie change the bearing and seal

Hello - no, the water pump cannot be repaired by a mechanic or technician. The rebuilders and remanufacturers (sometimes the original manufacturers of the part) have access to parts and tooling not available to pretty-much everyone else. Quite often, the...

Q: The car won't run for longer than 30 sec.

When the car will only run with the choke applied, this suggests there is a larger fuel delivery problem. Start by checking the fuel lines, filter, etc., to be sure they are all free of dirt or any kind...

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...
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...
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.