P22A2

NOx Sensor Circuit Intermittent Bank 1 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$89–278 (est.)

Symptoms

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

Causes

Open or short circuit in the NOx sensor circuit
Poor contact in the sensor connector
NOx sensor malfunction
Wiring harness damage
Problems with the engine control unit

How to Fix

Check the integrity of the wiring to the NOx sensor
Clean sensor connector contacts
Check sensor resistance
Replace NOx sensor if necessary
Check and update the ECU firmware

Related codes

P22A0 P22A1 P22A3