DTC P2198 BMW
O2 Sensor Signal Stuck Rich Bank 2 Sensor 1
O2 Sensor Signal Stuck Rich Bank 2 Sensor 1
Description
Engine running in closed loop, and the DME detected the O2S indicated a rich signal, or it could no longer control Fuel Trim because it was at its rich limit. The sensor temperature is heated up. The relative engine load change is less than or equal to 3
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: P2198
- Brand: BMW