P24F5

NOx Sensor Delayed Response - High to Low Bank 1 Sensor 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$167–444 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine idling
Noticeable increase in emissions

Causes

NOx sensor malfunction
Damaged or corroded electrical connections
Problems with the sensor wiring harness
Poor quality or contamination of AdBlue reagent
Engine control unit software errors

How to Fix

Check the condition of the sensor electrical connections
Test the NOx sensor using diagnostic equipment
Check the quality and level of AdBlue reagent
Update engine control unit software
If necessary, replace the NOx sensor

Related codes

P24F4 P24F6 P2201