P22BE

O2 Sensor Reference Voltage Circuit High Bank 2 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$39–89 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Reduced engine power
Unstable engine idling
Dips during acceleration

Causes

Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Oxygen sensor malfunction
Wiring Harness Problems
Engine ECU malfunction (rare)

How to Fix

Check the integrity of the wiring and connectors
Measure the resistance and voltage in the sensor circuit
Check contacts for corrosion or oxidation
Replace the oxygen sensor if necessary
Test the operation of the system after repair

Related codes

P2270 P2271 P2237