Q: Error code P0299

asked by on

Check engine light popped on so I took my car to autozone they hooked it up to diagnostics machine and P0299 showed. Guy told me I'm suppose to be using premium gas but had car for 2 years and never had a problem with using unleaded gas. What do I do next?
My car has an automatic transmission.

The code P0299 is for an underboost condition, where the computer wanted more boost but only received a low output.

This code can be set from a weak turbo, intake leaks, or a bad boost sensor. All of these components need to be checked to see if everything is okay. The code has nothing to do with using non premium fuel unless your fuel gauge specifically says premium fuel only.

If you’d like to get this fixed, contact a certified mechanic who can accurately diagnose your Check Engine Light. Once the check are performed and the diagnostic is complete, an accurate repair can then be made to get your car running normally again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Error code P0299

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: Automatic transmission - Why would shifter cable break? The car was transported from Florida to CT and was hardly driven.

Some towing companies will remove the shifter cable to the transmission to prevent anyone from stealing the vehicle on the rig when the rig is parked overnight. This includes removing the battery cables as well. It is not likely to...

Q: How do I personalize the power door locks settings?

You can customize many of your vehicle’s settings using the vehicle personalization system. One of the areas of the vehicle that you can customize is the power door locks. When personalizing the power door locks you can change which doors...

Q: Noise at rear tire

The noise you hear may be from an object that got into the tire or you have another problem; if a tac or nail got into the tire, you may hear a tapping noise every time the tire goes around....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...