P2041

Reductant Injection Air Pressure Sensor A Circuit Intermittent

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
AdBlue system error message
Intermittent operation of the reagent injection system

Causes

Damage to the sensor wiring harness
Poor contact in connectors
Air pressure sensor malfunction
Problems with the SCR control unit
Short circuit or open circuit

How to Fix

Check the integrity of the sensor wiring harness
Clean and check connector contacts
Test the air pressure sensor
Check the functionality of the SCR control unit
Replace sensor if necessary

Related codes

P2040 P2042 P2043