Check P0431 Fault Code
When you check engine light came on code P0431 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0431 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
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Parts or components should not be replaced with reference to only a P0431 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. |
P0431 Possible Fix :
If there's a part that needs repairing, leave it to the professionals. Unless of course, you're confident that you can conduct all these repairs at home. You'll need relatively expensive replacement equipment and tools for this though.
P0431 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0431 OBD-II Trouble Code The Engine Control Module (Reason For P0431 CodeThe reason of P0431 OBD-II Fault Code Check is P0431 Warm Up Catalyst Efficiency Below Threshold Bank 2. |
P0431 Solution:
Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.
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What does fault code P0431 mean ?
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How to Clear P0431 Trouble Code
An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.