P2398
Diesel Intake Air Flow B Position Sensor Circuit Low
P2398 is an OBD-II diagnostic trouble code meaning: Diesel Intake Air Flow B Position Sensor Circuit Low. Common causes: air flow position sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Reduced engine power
- Increased fuel consumption
- Problems starting the engine
- Check Engine Light Is On
- Unstable engine idling
Causes
- Air flow position sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring Harness Problems
- Engine control unit malfunction
How to Fix
- Check the integrity of the sensor circuit
- Inspect the sensor connector and contacts
- Check the functionality of the sensor
- Replace sensor if necessary
- Check and update the ECU firmware if necessary
Related codes
Error P2398 by Vehicle Brand
FAQ
What does the P2398 code mean?
P2398 is an OBD-II diagnostic trouble code that indicates: Diesel Intake Air Flow B Position Sensor Circuit Low
What causes a P2398 error code?
The most common causes of P2398 include: Air flow position sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring Harness Problems.
How do I fix a P2398 diagnostic trouble code?
To fix P2398: Check the integrity of the sensor circuit. Inspect the sensor connector and contacts. Check the functionality of the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2398?
Yes, but get it checked soon
How much does it cost to fix P2398?
The estimated repair cost for P2398 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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