P24E2

NH3 Sensor Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unusual exhaust smell
Problems with passing technical inspection

Causes

NH3 sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Problems with the engine control unit
Sensor contamination

How to Fix

Check the continuity of the NH3 sensor circuit
Check sensor connectors and contacts
Clean the sensor from dirt
Replace NH3 sensor if necessary
Check and update the control unit firmware

Related codes

P24E0 P24E1 P24E3