Complete diagnostic information for error code P0104
Manufacturer-Specific Variations
This code (P0104) may have different meanings or additional parameters depending on your vehicle's make, model, and year. Always verify with your vehicle's service manual or a qualified technician before attempting repairs.
P0104
Powertrain CodeMass Air Flow Sensor Circuit Intermittent
Description
Mass Air Flow Sensor (MAF) (G70), Circuit Intermittent
Common Symptoms
- Intermittent Check Engine Light
- Sporadic engine performance issues
- Erratic idle or occasional stalling
- Fluctuating fuel economy
- Random hesitation or power loss
Possible Causes
- Loose or corroded MAF sensor connector
- Intermittent wiring issues in MAF circuit
- Failing MAF sensor with intermittent operation
- Vibration-related connection problems
- ECU intermittent signal processing
Diagnosis Steps
- Monitor MAF sensor readings during road test
- Test for intermittent connections at MAF connector
- Inspect MAF wiring harness for damage or chafing
- Check MAF sensor connector for corrosion
- Test MAF signal stability over time
Repair Solutions
- Secure loose MAF sensor connections
- Clean and repair corroded MAF connector
- Replace failing MAF sensor with intermittent operation
- Repair damaged or chafed wiring harness
- Replace ECU if intermittent processing issue
Prevention Tips
- Secure all electrical connections properly
- Protect wiring from vibration and heat
- Regular connector inspection and cleaning
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