P2196 - how to get to sensor

Question

how to find and change sensor

Answer 1

P2196 H02S sensor signal stuck rich Bank 1 Sensor 1

Check for vacuum leaks this code is not necessary the 02 sensor but detecting a condition where the ECM responds with a rich condition to compensate for a lean condition,

 Make sure to check that the vacuum hose are connected, these can cause false air and set fuel trim conditions