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P0406

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P0406 OBD-II Trouble Code: Exhaust Gas Recirculation Sensor "A" Circuit High
P0406 code definition P0406 is a general ODB2 trouble code indicating a fault...

Related questions

Question
What is the code P0406 and P0128?
The code P0406 is for the electronic gas recirculation valve high circuit input. Meaning the valves sensor is detecting a high voltage input. This can be due to carbon build up on the valve, a bad valve, or a bad...
Question
2005 Chrysler 300c has a code P0406. I believe EGR needs replacing, Don't know if it will make it 25 miles to dealer.
P0406 involves the EGR system but that may or may not be the only factor causing your rough running condition. Typically, P0406 will set if you have a failed EGR valve, excessive carbon buildup, an open or short in the...

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