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Land Rover 4.2 supercharged code P0170, Left Bank error. Anyone had this problem?

Vehicle: 2005 Land Rover 4.2L

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Hi there,

This is a rich exhaust code. This is usually the result of a faulty front O2 sensor on that bank. Most of the time replacing the sensor will solve the issue. Once in a while the rear will be the cause since both sensors work together to try and get the proper fuel mixture.

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