P0101
Mass Or Volume Air Flow - Circuit Range/performance Problem
Description
Mass or Volume Air Flow - Circuit Range/Performance Problem This body system diagnostic trouble code indicates an issue with the vehicle's comfort, safety, or convenience systems.
OBD Codes Details
Possible Causes
Blown fuse, faulty switch, damaged wiring harness, poor electrical connection
Solution
Check fuses and relays, inspect wiring harness, test switches and sensors, repair damaged circuits
Symptoms
- Engine running roughly or irregularly
- Poor acceleration or reduced power
- Black smoke from exhaust
- Engine hesitation during acceleration
- Increased fuel consumption
Diagnostic Recommendations
- Use OBD scanner to confirm the code and check for additional codes
- Inspect the Mass Air Flow (MAF) sensor for dirt or damage
- Check air filter condition and replace if dirty
- Examine air intake system for leaks or loose connections
- Test MAF sensor voltage and frequency readings
- Clean MAF sensor with appropriate cleaner if dirty
Repair Cost Estimate
- MAF sensor cleaning: $20-50
- MAF sensor replacement: $150-400
- Air filter replacement: $15-50
- Air intake system repair: $100-300
- Total diagnostic and repair: $200-800
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Fact-checking completed
Verified by:
Pavel Volkov
Created:
Last updated:
Information verified against official sources
Official Sources
Society of Automotive Engineers
Official OBD-II diagnostic trouble codes standard (SAE J2012)
Automotive engineering standards organization
International Organization for Standardization
International standard for vehicle diagnostic systems
International standards for automotive diagnostics
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