P2A11

O2 Sensor Negative Voltage Bank 2 Sensor 3

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Increased fuel consumption
Unstable engine operation
Check Engine light comes on
Increased emissions of harmful substances

Causes

Oxygen sensor malfunction
Damage to wiring or connectors
Grounding problems
Engine control unit malfunction

How to Fix

Check the condition of the oxygen sensor
Check the integrity of wiring and connectors
Check sensor grounding
Replace the oxygen sensor if necessary

Related codes

P2A00 P2A01 P2A02