Skip the auto shop - Our mechanics make house calls

P0069 OBD-II Trouble Code: Manifold Absolute Pressure/Barometric Pressure Correlation

Check Engine Light

P0069 Code Definition

Manifold Absolute Pressure/Barometric Pressure Correlation

What the P0069 code means

What this code means is that the Powertrain Control Module is detecting contradictory readings from the manifold absolute pressure sensor and the barometric pressure sensor.

What causes the P0069 code?

Causes of the P0069 code could include a faulty manifold absolute pressure sensor, a faulty barometric pressure sensor, a fault in the circuitry of either sensor, a faulty Powertrain Control Module, or even a dirty air filter.

A dirty air filter can affect the pressure within the air induction system and the intake manifold, therefore affecting pressure readings of the barometric pressure sensor and the manifold absolute pressure sensor.

What are the symptoms of the P0069 code?

Symptoms that the driver may experience of the P0069 code include a Check Engine Light, a rough engine idle, engine surging, detonation, and possible engine damage if running for an extended period of time.

How does a mechanic diagnose the P0069 code?

A mechanic may diagnose the P0069 code by inspecting the circuitry of the manifold absolute pressure sensor and barometric pressure as well and the sensors themselves for any damages, loose connections, or shorts.

A mechanic may also connect a scan tool to the vehicle and drive it while observing live data. The mechanic would then use this data to verify the contradictory readings between these two sensors. If the powertrain control module is at fault, this may also be diagnosed by a high quality scan tool.

Common Mistake when diagnosing the P0069 code

Common mistakes when diagnosing this code would be skipping the diagnosis altogether and replacing either the manifold absolute sensor, barometric pressure sensor, or powertrain control module. Without verifying that they are faulty prior to replacing them.

How serious is the P0069 code?

Any condition that causes the engine to run poorly would be considered mildly serious. This condition is okay to drive on for a short period of time, but after an extended period, engine damage may occur. The car running improperly can cause abnormal wear to the engine block as well as vital engine parts. This issue can start out as a minor irritation but end up very troublesome.

What repairs can fix the P0069 code?

Repairs that can fix the P0069 code would include:

Additional comment regarding the P0069 code

It would be advised to replace the air filter as a basic maintenance service along with repairing this issue regardless of if the air filter was the initial cause.

The engine’s ability to breathe gets decreased every second that it is running due to the fact that it is constantly inhaling polluted air from the environment. All particles large enough to get caught in the air filter will cause a minor blockage in the air induction system. All of these minor blockages add up and could eventually lead up to a P0069 code.

Need help with a P0069 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...


Related questions

Q: Idling problems and flashing check engine light clicking noise being glove box by relay

The green key flashing is an immobilizer which can be caused for many reasons including a simple bad battery connection. The rough idle problem suggests a potentially bad idle air control module which regulates the air flow into the intake...

Q: Instrument panel lights are on - codes P0102, P0069

Both of these sensors have to do with sending air mass and pressure information to the engine computer. It is likely you have a vacuum leak or these sensors are starting to fail and are offering the engine computer false...

Q: ESP Light and column electrical failures after a sharp turn.

That must have been one hard turn! The ESP light is for the Electronic Stability Program: a system built into your braking system to help prevent the car from going out of control in a sharp turn. You could have...