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Check engine light is on - within the last couple of days seems to be running harder than usual.
Codes that appear when checked (myself) P0455 and P0442 Please advise
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If the "Check Engine Light" comes up, the on
board diagnosis system of your vehicle has detected an error with the
petrol injection system, a faulty sensor, stuck servo motor etc. for
example.
The light indicates the recognition and storage of an
digital trouble code to the system´s memory to the driver. You should
see a mechanic to check the ECU (engine control unit) for saved trouble
codes.
Please don´t hesitate too long to prevent the engine from
serious damage.
Running rough and misfiring is usually a one or more bad spark plug wires. Don't go back to that dealer. Replace the wires or have your mechanic do it for you. If you replace them, take one off at a time and install the new one. If you put the wires back on in the wrong order, it will misfire.
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