U030E

Software Incompatibility With NOx Sensor B

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Problems with passing inspection due to emissions
Activating emergency engine operation

Causes

Incompatible ECU software version
Incorrect NOx sensor replacement
Damage to ECU software
Software update problems
Bank B NOx sensor malfunction

How to Fix

Check that the ECU software is up to date
Compare NOx sensor specifications with manufacturer's requirements
Reflash the ECU with compatible software
Replace the NOx sensor with a compatible model
Check the integrity of the sensor circuit

Related codes

U030D U030F U0310