Acura DTC

Acura DTC P2197


Acura DTC




Front Air Fuel Ratio (A F) Sensor (Bank 2, Sensor 1) Signal Stuck Lean


The front A F sensor (bank 2, sensor 1) output voltage is 3.48 V or more for at least 7 seconds. The execution time is once per driving cycle and DTCs P0154, P0155, P0174, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0627, P1174, P2240, P2241, P2247, P2249, P2254, P2255 are not active. NOTE: If DTC P2101, P2118, P2135, P2138, P2176, or a combination of P2122 and P2127, P2122 and P2138 or P2127 and P2138 is stored at the same time as DTC P2195, P2197, troubleshoot those DTCs first, then recheck for DTC P2197.


  • Loose A F sensor Poor connections or loose terminals at A F sensor (Sensor 1) and the PCMFaulty A F sensor (Sensor 1)PCM may need to be updated with the latest softwareFaulty PCM

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