P229F

NOx Sensor Circuit Range/Performance Bank 1 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Increased fuel consumption
Reduced engine power
Increased NOx emissions
Possible problems with passing technical inspection

Causes

NOx sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Sensor power problems
Sensor contamination or mechanical damage

How to Fix

Check the condition of the sensor wiring and connectors
Check sensor parameters using a diagnostic scanner
Clean sensor connector contacts
If necessary, replace the NOx sensor
Check and update ECU software if necessary

Related codes

P229E P2200 P2201