DTC P2197: General Description
When the front air/fuel ratio (A/F) sensor (bank 2, sensor 1) is properly connected to the engine wire harness, but it is not installed in the exhaust pipe, the feedback is not done properly even if the front A/F sensor (bank 2, sensor 1) is active after starting the engine. Thus, the exhaust emissions increase. When the front A/F sensor (bank 2, sensor 1) output stays out of the normal range after the front A/F sensor (bank 2, sensor 1) becomes active, the powertrain control module (PCM) detects that the front A/F sensor (bank 2, sensor 1) is not properly installed and stores a DTC.