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P2197 Diagnostic Trouble Code Discussion for April 2011

Heated Oxygen Sensor (Bank 2 Sensor 1) Stuck Lean

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Trouble Ticket Help Requests for DTC P2197
Help Request Posted
2004 Lexus RX330 3.3L Poor Fuel Economy VIN: 2T2HA31U34
P2197: Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Lean". ... about poor fuel economy and code set p2197 so I replace the b2s1 o2 sensor and I find out the check engine light not even working.A week later he said still poor mileage so I scan it the code p2197 came back again and i use oem o2 clean maf wire, no vacuum...
April 30, 2011