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P0290 is a diagnostic trouble code (DTC) for "Cylinder 10 Contribution/Balance Fault". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
This is the generic trouble code for Cylinder 10 Contribution/Balance Fault.
Your vehicle’s PCM (powertrain control module) monitors power activity from each cylinder based upon signals it interprets as voltage readings. When cylinder number 11 in the firing order sends a signal which is outside of the normal expected range according to manufacturer’s specifications, this trouble code sets. This indicates to the computer that cylinder 11 is contributing less power than the other cylinders, which typically happens when there is a fuel delivery problem.
Possible reasons for this problem include:
Due to the engine not receiving the correct amount of fuel, signs of this fault may include rough acceleration, rough idle, and/or engine misfires. You will probably also notice an illuminated Check Engine Light.
In some cases, a trouble code may need to occur through several drive cycles before the Check Engine Light will come on, even though the code is generally stored upon the first occurrence. This is why it’s important to pay close attention to any troublesome symptoms and have the issue repaired before it can cause further damage.
Your technician may carry out the following steps:
One common error is overlooking the need to test fuel pressure before replacing the fuel injector. Each component’s function should be investigated before assuming the repair is complete.
When fuel delivery is altered, the computer tells the engine to readjust the way it functions, often prompting other cylinders to compensate for the power shortage. Over time, this can affect the engine and other components because the vehicle is not running according to normal specifications. It’s best to have an engine problem checked out by a qualified professional as soon as possible to prevent further damage.
Possible fixes include:
If you suspect your fuel injector may be clogged, there are direct-injection cleaning kits available for home use. Be sure to follow the instructions carefully.
If, after all circuitry and the fuel injector have been thoroughly tested, the problem still cannot be identified, the answer may lie in a faulty PCM fuel injector driver. Diagnosing any engine problem can be a challenge, particularly without the proper tools and expertise, so it may be best to leave this job to a qualified mechanic.
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 1-800-701-6220.