Scantool Diagnostics
Engine Control
P2273 O2 Sensor Signal Stuck Rich (Bank 2 Sensor 2) - Scantool Diagnostics
Monitor Scantool Data
1. Connect scantool to DLC (Data Link Cable).
2. Warm up the engine to normal operating temperature.
3. Monitor "HO2S" parameter on scantool.
Fig.1) The Normal data of HO2S heaters at idle
4. Are the parameters displayed correctly?