The Quick Answer above is the generic definition. What follows is what is documented for the Honda models that log P0101, checked against manufacturer data and owner reports.
DTC/P0101·Honda
P0101 on Honda: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)Honda
P0101 on a Honda means your mass air flow (MAF) sensor is sending readings outside the expected range for the current engine speed and throttle position. The ECU uses MAF data to calculate fuel injection, so bad readings cause incorrect air-fuel mixture and poor engine performance.
Repair cost on Honda€8 - €380
Connect any standard Bluetooth OBD2 adapter to your Honda and Skanyx tells you what P0101 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
Get Skanyx freeWhat does P0101 mean on a Honda?
Honda Civic
2006-2024Honda uses a Keihin MAF integrated into the airbox on many Civic models. The 1.5T (2016+) is more sensitive to MAF contamination due to the turbo's pressure dynamics. The intake boot between the MAF and turbo inlet is a known failure point for air leaks.
What causes P0101 on a Honda?
Beyond the generic causes listed on the main P0101 page, these are the documented Honda-specific patterns:
Honda CivicIntake boot cracking between MAF and turbo inlet on 1.5T
Honda CivicMAF contamination from PCV blow-by on high-mileage R18A
How to diagnose P0101 on a Honda with OBD2
Follow these steps to pinpoint the root cause of P0101:
- Check and replace air filter if clogged (cheapest fix first)
- Inspect intake tract between MAF sensor and throttle body for cracks, loose clamps, or disconnected hoses
- Clean MAF sensor with dedicated MAF cleaner spray. Never touch the sensor element or use brake/carb cleaner
- Try unplugging the MAF and driving briefly. If the car runs better, the MAF is sending bad data
- Check live data: MAF reading at idle should be 2-7 g/s for most 4-cylinder engines, 5-15 g/s for V6/V8. At 2500 RPM, values should scale proportionally
- If cleaning doesn't resolve, replace the MAF sensor
How much does P0101 cost to fix on a Honda? (EUR)
Estimated repair costs for P0101 in EUR, compiled across makes. Honda parts and labour usually land towards the lower end of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Related codes that often appear with P0101 on Honda
These codes commonly cluster with P0101 on Honda vehicles:
Looking for the full P0101 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0101 guideSkanyx · Honda
Diagnose P0101 on your Honda
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