P0103
Mass or Volume Air Flow Sensor A Circuit High
P0103 is an OBD-II diagnostic trouble code meaning: Mass or Volume Air Flow Sensor A Circuit High. Common causes: dirty or damaged air flow sensor, air leak in the intake system. Estimated repair cost: $17–167.
Symptoms
- Unstable idle speed
- Increased fuel consumption
- Black smoke from the exhaust pipe
- Loss of engine power
- Jerks when accelerating
- Difficulty starting the engine
Causes
- Dirty or damaged air flow sensor
- Air leak in the intake system
- Faulty MAF wiring or connector
- Air filter clogged
- Damage to the air filter housing
- Engine ECU malfunction
How to Fix
- Check the condition of the air filter and replace if necessary
- Inspect the intake system for air leaks
- Clean the MAF sensor with a special cleaner
- Check the integrity of the wiring and the reliability of the contacts of the mass air flow sensor connector
- If necessary, replace the mass air flow sensor
- Clear errors and take a test drive
- Reread error codes to confirm troubleshooting
Related codes
Error P0103 by Vehicle Brand
FAQ
What does the P0103 code mean?
P0103 is an OBD-II diagnostic trouble code that indicates: Mass or Volume Air Flow Sensor A Circuit High
What causes a P0103 error code?
The most common causes of P0103 include: Dirty or damaged air flow sensor; Air leak in the intake system; Faulty MAF wiring or connector; Air filter clogged.
How do I fix a P0103 diagnostic trouble code?
To fix P0103: Check the condition of the air filter and replace if necessary. Inspect the intake system for air leaks. Clean the MAF sensor with a special cleaner. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0103?
Limited driving only, diagnose soon
How much does it cost to fix P0103?
The estimated repair cost for P0103 is $17–167. Actual cost depends on your vehicle, location, and labor rates.
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