Skip the auto shop - Our mechanics make house calls

P2073 OBD-II Trouble Code: Manifold Absolute Pressure/ Mass Air Flow - Throttle Position Correlation at Idle

Check Engine Light

P2073 code definition

Manifold Absolute Pressure/ Mass Air Flow - Throttle Position Correlation at Idle

What the P2073 code means

This trouble code indicates that the reference voltages of the manifold absolute pressure, mass air flow, and throttle position sensors vary by an amount that exceeds the manufacturer’s threshold of acceptance.

What are the causes of the P2073 code?

Some potential causes of this trouble code may include:

  • The manifold absolute pressure or mass air flow sensor could be faulty.

  • The throttle position sensor could be misaligned or faulty.

  • The wiring or connectors that are associated with the manifold absolute pressure or mass air flow sensors could be damaged.

  • The air filter could be extremely dirty.

  • The powertrain control module could be malfunctioning.

  • A vacuum leak may exist between the air cleaner box and the throttle body.

What are the symptoms of the P2073 code?

Symptoms of this trouble code that the driver may experience would include:

  • Very weak acceleration
  • Decreased fuel mileage
  • A Check Engine Light

How does a mechanic diagnose the P2073 code?

A mechanic may begin diagnosing this trouble code by first inspecting the wiring and connectors that are associated with the manifold absolute pressure and mass air flow sensors for damages. Then the mechanic would test the sensors themselves for proper function using the manufacturer’s suggested procedure. Next, the mechanic would check the throttle position sensor for proper function and alignment while ensuring that no vacuum leaks exist and the air filter is clean. Finally, the powertrain control module would be tested. After all of these tests are performed, the mechanic would then relay their findings over to the customer to make a repair decision.

Common mistakes when diagnosing the P2073 code

A common mistake when diagnosing this trouble code would be to replace the manifold absolute pressure sensor and the mass air flow sensor without testing anything. This is a very bad mistake as this code could be caused by something other than either one of these sensors. It is a good idea to make sure your trouble codes get diagnosed by a qualified technician to reduce wasted time and money.

How serious is the P2073 code?

This code would be considered serious because it can cause drivability issues. Any issue that can cause the vehicle not to accelerate properly should be diagnosed and repaired as soon as possible. These types of problems lead to potential breakdowns.

What repairs can fix the P2073 code?

Repairs that can fix this trouble code would consist of :

Additional comments regarding the P2073 code

Regular maintenance of your vehicle can prevent trouble codes such as this one. Make sure that your air filter gets replaced annually for best results.

Need help with a P2073 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

Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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....


Related questions

Q: p0420

A vehicle with 182,000 miles is likely due for a catalytic converter. Most of the time it does mean you need a new catalytic converter. But there are a couple of other things that are prudent to take a look...

Q: Stopped accelerating and shaking at highish speeds?

Hello, thank you for writing in. The first step is to find out what issues are triggering the check engine light. This can be done by having the vehicle scanned for diagnostic troubleshooting codes at your local auto parts store,...

Q: What parts will I need for a timing chain replacement and how many of each. Is my engine interference or non interference?

Hello - your engine does use a timing chain, and that engine is not an interference (valve-to-piston) engine. However, having said that - if the chain breaks, especially at anything above an idle, the broken chain can jam the crankshaft...