P0290 Code - Cylinder 10 Contribution/Balance Fault

What Does P0290 Mean?

The PCM has detected a voltage reading in the fuel injector circuit (for the fuel injector in cylinder 10) that does not conform to the manufacturer’s reference value.

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What are the common causes of P0290 ?

Depending on year, make, and model, DTC P0290 may have number of causes. Here are some of the most common.

• Dirty Fuel Injectors – This is the number one cause of cylinder balance issues. This can be caused by dirty fuel, poor onboard fuel filtering, or carbon deposits. In some models, biodiesel has been blamed, perhaps for its low detergent qualities. Intensive fuel injector cleaning may solve the problem, but sometimes injector replacement is recommended.
• Improper Replacement – Some have gone forward with injector replacement, only to find it doesn’t solve the problem. If diesel fuel injectors are replaced, they must be run through a “learning procedure,” which enables the ECM and injector driver to learn the individual injector’s characteristics.
• Mechanical Problems – Anything that affects cylinder function, such as burnt valves, worn rings, or leaking head gasket, can affect power output of one or more cylinders, without necessarily causing a misfire.

How do you troubleshoot P0290 ?

Possible fixes include:

• Fuel injector cleaning
• Fuel injector replacement (including O-rings if necessary)
• Fuel filter replacement
• Fuel pump replacement
• Repairing low compression in cylinder 11 if it tests below specifications
• Repairing damaged or loose wiring and connections

Searches related to P0290 Code - Cylinder 10 Contribution/Balance Fault

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