P0287 Code - Cylinder 9 Contribution/Balance Fault

What Does P0287 Mean?

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above. When you see P0287 engine fault code on your engine code reader this description will help you.

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What are the common causes of P0287 ?

Depending on year, make, and model, DTC P0287 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 P0287 ?

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio.

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