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Dan, Technician
Category: Mitsubishi
Satisfied Customers: 23485
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Just wondering what p 0431 bank 2 means

Customer Question

Just wondering what p 0431 bank 2 means
Submitted: 6 months ago.
Category: Mitsubishi
Expert:  Dan replied 6 months ago.

Hello, my name is***** code almost always means the catalytic converter has failed but can also mean oxygen sensor is weak. You should monitor oxygen sensors to see if they are switching slow, if so replace. If they are operating normally then replace the converter. You can also try a burn out procedure to clean converter by disabling one coil then holding rpm at 3000 rpm for 5 minutes, reset code, and see if it comes back. If so, replace converter. Let me know if you have more questions, thanks.

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