P2038

Symptoms

• Check Engine light comes on
• Reduced engine power
• Increased fuel consumption
• Problems starting the engine
• Unstable engine idling

Causes

• Faulty reagent injection air pressure sensor
• Open or short circuit in the sensor circuit
• Poor contact in the sensor connector
• Sensor is dirty or damaged
• Problems with the engine control unit

How to Fix

1. Check the integrity of the sensor circuit and connectors
2. Check the sensor readings using a diagnostic scanner
3. Clean or replace the air pressure sensor
4. Check and replace wiring harness if necessary
5. Flash or replace the engine control unit if necessary

Related codes

Error P2038 by Vehicle Brand