P22B3

O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Increased fuel consumption
Reduced engine power
Unstable engine idling

Causes

Open or short circuit in the sensor wiring harness
Oxygen sensor malfunction
Connection problems or connector corrosion
Engine control module (ECU) malfunction

How to Fix

Check the integrity of the sensor wiring harness
Check connections and connectors for corrosion
Replace the oxygen sensor if necessary
Check and, if necessary, replace the engine control module

Related codes

P22B2 P22B4 P0030