DTC P2197 BMW
O2 Sensor Signal Stuck Lean Bank 2 Sensor 1
O2 Sensor Signal Stuck Lean Bank 2 Sensor 1
Description
Engine running in closed loop, and the DME detected the O2S indicated a lean signal, or it could no longer control Fuel Trim because it was at lean limit. The sensor temperature is heated up. The relative engine load change is less than or equal to 3 perc
Cause and Solution
Engine oil level high
Camshaft timing error
Cylinder compression low
Exhaust leaks in front of O2S
EGR valve is stuck open
EGR gasket is leaking
EVR diaphragm is leaking
Video Guide
Diagnostic Info
- DTC Code: P2197
- Brand: BMW