P0287 OBD-II Trouble Code: Cylinder 9 Contribution/Balance Fault

check engine light

P0287 code definition

A P0287 Trouble Code indicates cylinder 9 contribution/balance fault.

What the P0287 code means

In the event of a P0287 code appearing and storing in the vehicle, it means that there is an abnormal reading in the fuel injector circuit in cylinder 9. The reading is out of the range allowed by the manufacturer, and this could cause a problem related to the fuel.

What causes the P0287 code?

A number of different things could make the P0287 code appear. The following are the most common causes.

  • Dirty fuel injector.
  • Clogged fuel injector.
  • Failed fuel injector.
  • Issues with the electrical connector, possibly due to corrosion or disconnection.
  • Wildlife can actually damage the wiring in this area of the vehicle, and it happens quite often.
  • There is a slim chance that it could be a problem with the powertrain control module.

What are the symptoms of the P0287 code?

In addition to the P0287 code being set on the vehicle, the Check Engine Light will also come on and stay lit in most cases. The driver may also notice that they have more trouble accelerating and that the vehicle has less overall power. When they are idling, it could be rough. They may also notice that their fuel economy is not quite as good as it was before.

How does a mechanic diagnose the P0287 code?

The mechanic will want to connect to the vehicle’s onboard computer with their OBD-II monitor. This scanner is able to gather data from the computer that will provide them with needed information on the codes. They will reset the codes and test the vehicle to see if they come back. In some older vehicles, the codes might have been stored mistakenly. If the code comes back though, they can continue with their diagnosis, which will often continue with a visual inspection.

Common mistakes when diagnosing the P0287 code

In some cases, the mechanic might not thoroughly examine the potential problems the vehicle could have when they exhibit this code. Instead, they jump to the conclusion that there is a problem with the powertrain control module, and they replace it. Instead, they should have looked deeper into the vehicle’s problems to diagnose it properly.

How serious is the P0287 code?

In most cases, you will notice that there is a different level of performance from your vehicle. It will not feel as responsive as it did, and it will idle rough. Even though it might still technically be drivable in these cases, it’s not a good idea to go very far until you’ve taken it to a mechanic. They can diagnose it and then follow through with the proper repairs that are needed.

What repairs can fix the P0287 code?

Here are some of the common repairs that can help to fix the P0287 code:

  • After using the OBD-II scanner, they will likely continue with a visual inspection and look for issues with electrical connectors and wires. They will replace or repair these as needed, and then retest the vehicle to see if the code returns.
  • Flush the fuel injector.
  • Replace the fuel injector

Additional comments for consideration regarding the P0287 code

The P0287 code will often mean that your vehicle is going to run and idle rough, and you could have some issues when you are trying to accelerate. You can still drive the vehicle though, and this is where many people get into trouble. They decide that they can push the vehicle further before they get it repaired. This just causes more issues with the vehicle though. The best course of action will be to get in touch with an experienced mechanic. They can diagnose the vehicle and then determine the repairs needed to fix the problem. Waiting too long will only cause more problems in most cases.

Need help with a P0287 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

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