DTC P2097: Target A/F Feedback System Too Rich

Fig 1: DTC P2097 Detection Condition & Possible Causes Chart

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Diagnostic Procedure 

Fig 2: DTC P2097 Diagnostic Procedure Chart (Step 1-5)

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Fig 3: DTC P2097 Diagnostic Procedure Chart (Step 6-13)

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Fig 4: DTC P2097 Diagnostic Procedure Chart (Step 14-18)

Courtesy of MAZDA MOTORS CORP.