P2097 ACURA - Post Catalyst Fuel Trim System Too Rich Bank 1
P2097 Acura DescriptionThe Engine Control Module (ECM)/Powertrain Control Module (PCM) detects oxygen content in the exhaust gas by the Air/Fuel Ratio (A/F) Sensor (Sensor 1), and it uses feedback control before the warm up three way catalytic converter (WU-TWC) to bring the air/fuel ratio in the air/fuel mixture close to the target air/fuel ratio. The target air/fuel ratio is adjusted by the secondary heated oxygen sensor (secondary HO2S (sensor 2)) output so that the air/fuel ratio in the WU-TWC to be optimized. When the A/F sensor cannot be able to measure air/fuel ratio in the exhaust gas normally, a gap occurs between the actual air/fuel ratio. As a result, the gap causes a deviation in target air/fuel ratio control (after WU-TWC) which is determined by the secondary HO2 sensor. If the deviation exceeds a limit, the ECM/PCM detects a malfunction and stores a DTC.
Need more help?Do you need more help with the P2097 Acura code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code
P2097 ACURA CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P2097 Acura code? Have you replaced any parts?
Any information is appreciated. Thanks