P2631

O2 Sensor Pumping Current Trim Circuit High Bank 2 Sensor 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–67 (est.)

Symptoms

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

Causes

Bank 2 Sensor 1 Oxygen Sensor Malfunction
Damaged wiring or poor contact
Short circuit in the sensor circuit
Problems with the ECU
Oxygen sensor dirty

How to Fix

Check the integrity of the sensor wiring and connectors
Check the resistance and voltage in the sensor circuit
Clean or replace Bank 2 Sensor 1 oxygen sensor
Check the operation of the computer
Reset the error code and check if it returns

Related codes

P2630 P2632 P2633