DTC Description / Detecting Condition / Confirmation Procedure

P0171, P0174 

Refer to DTC P0171 / P0174: System Too Lean .

P0172, P0175 

Refer to DTC P0172 / P0175: System Too Rich .

P2096, P2097 

Refer to DTC P2096 / P2097: Post Catalyst Fuel Trim System Too Lean/Too Rich (Bank 1 Sensor-2) .

P2098, P2099 

Refer to DTC P2098 / P2099: Post Catalyst Fuel Trim System Too Lean/Too Rich (Bank 2 Sensor-2) .