P2272

O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–67 (est.)

Symptoms

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

Causes

Bank 2 Sensor 2 oxygen sensor malfunction
Air leaks in the exhaust manifold or pipes
Problems with the fuel supply system (clogged injectors, weak fuel pump)
Sensor wiring is dirty or damaged
Leaking intake system

How to Fix

Check the integrity of the oxygen sensor wiring
Check the exhaust system for leaks
Check fuel pressure and condition of fuel injectors
Replace Bank 2 Sensor 2 oxygen sensor if necessary
Clear error codes and check if error is returned

Related codes

P2270 P2271 P2273