P0101
Mass or Volume Air Flow Circuit Range/Performance Problem
Generic code
Fuel and Air Metering
High severity
Hard repair
Free on OBD DashX
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What P0101 means
- The fault code P0101 indicates that there is an issue with the Mass Air Flow (MAF) sensor circuit. This may affect the engine's performance and lead to multiple other problems.
Possible symptoms
- Illuminated check engine light
- Reduced engine power or acceleration
- Hesitation or stalling
- Rough idle or running poorly
- Poor fuel economy
Possible causes
- Dirty or contaminated MAF sensor element
- Damaged or faulty MAF sensor
- Loose or damaged electrical connections in the MAF circuit
- Vacuum leaks in the intake system
- Clogged air filter
- Faulty or dirty throttle body
- Failed engine control module (ECM)
Related parts
- Mass Air Flow Sensor: A mass (air) flow sensor (MAF) measures the amount of air entering the engine to ensure proper combustion. This car's malfunctioning MAF sensor will lead to poor fuel economy and performance
Possible solutions
- Clean or replace the MAF sensor element
- Replace the MAF sensor if necessary
- Check and repair any damaged wiring or connections in the MAF circuit
- Check for and repair any vacuum leaks in the intake system
- Replace any clogged air filters
- Clean or replace the throttle body
- Replace the engine control module (ECM) if necessary
Free on OBD DashX
P0101 on OBD DashX
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