When Monitored and Set Condition:

WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

P2096-DOWN STREAM FUEL SYSTEM 1/2 LEAN

When Monitored: With the engine running in closed loop mode, the ambient/battery temperature above (-7°C)20°F, altitude below 8500 ft and fuel level greater than 15%.

Set Condition: If the PCM adds downstream short term compensation to long term adaptive and a certain percentage is exceeded for two trips, a freeze frame is stored, the MIL illuminates and a trouble code is stored.

P2097-DOWN STREAM FUEL SYSTEM 1/2 RICH

When Monitored: With the engine running in closed loop mode, the ambient/battery temperature above (-7°C)20°F altitude below 8500 ft.