📖 What Does P0103 Mean?
The mass air flow sensor is reading higher than expected. This can cause the engine to run lean.
Symptoms
Lean fuel mixture, rough idle, hesitation, lack of power, backfiring, hard starting.
Common Causes
Faulty mass air flow sensor, wiring problems, air leak after sensor, damaged sensor element.
Possible Solutions
Replace mass air flow sensor, repair wiring issues, fix air leaks after sensor, check sensor connections.
Recommended Parts & Tools
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Frequently Asked Questions about P0103
How serious is P0103?
This code has a medium severity level. This should be diagnosed and repaired soon to prevent further issues.
Can I drive with P0103?
You can typically drive short distances, but have it diagnosed as soon as possible.
How much does it cost to fix P0103?
Repair costs vary depending on the root cause, but typically range from $100-300 including parts and labor.
Related Diagnostic Codes
Other codes that may appear with P0103
Fuel and Air Metering Code P0100
Mass Air Flow Sensor Circuit Range/Performance Problem
Mass Air Flow Sensor Circuit Low Input
Fuel and Air Metering Code P0104
System Too Lean Bank 1
System Too Lean Bank 2
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system