The shop told me that they saw this code while running the testing.
Engine light is NOT on so far.
Long term fuel trim - Bank 1: 13.28%
Short term fuel trim - Bank 1: -1.56%
Sensor Voltage(B1S1): 100 mv
Sensor (Post-Catalyst) (B1S2) : 805 mv
Long term fuel trim - Bank 2: 19.53%
Short term Fuel trim - Bank 2: -6.25%
Sensor Voltage(B2S1): 520 mv
Sensor (Post-Catalyst) (B2S2) : 715 mv
Q1> What may cause the problem?
Q2> Is this sensor same as LH heated oxygen sensor and please see the attached image on left side?
Q3> If it is, where I can find this special tool?
Socket, Exhaust Gas Oxygen Sensor