P0101 on Honda vehicles
MAF Sensor Range / Performance — what it means on a Honda, whether it's safe to drive, and the fixes by model and year.
P0101 on a Honda means maf sensor range / performance. Most vehicles stay drivable short-term, but diagnose it promptly. The most common cause is dirty maf sensor (oil film or dust on the hot-wire elements) (typically $15–$80). Pick your Honda model below for its known failure patterns, recalls, and TSBs.
What does P0101 mean on a Honda?
P0101 is set when the ECM detects that the mass air flow sensor reading does not correlate with other engine load signals (throttle position, manifold absolute pressure, RPM, engine displacement). Either the MAF is reading too low for the actual engine load, too high, or its output is noisy. P0101 is not a "MAF dead" code — it specifically means the MAF is producing implausible readings rather than no readings at all.
P0101 is a standardized OBD-II code, so its definition is the same on every Honda. What differs by model and engine is which cause is most likely — pick your Honda model below for a diagnosis tuned to its known failure patterns, recalls, and TSBs.
Is it safe to drive a Honda with P0101?
In most cases a Honda stays drivable for short trips with P0101 active, but diagnose and repair it promptly. This is a moderate-severity code — ignoring it can lead to further damage or a failed emissions test. Exact tolerance depends on the model and engine.
What causes P0101 on a Honda?
| Cause | Likelihood | Estimated repair (USD) |
|---|---|---|
| Dirty MAF sensor (oil film or dust on the hot-wire elements) — MAF-safe cleaner is the first thing to try. | Most common | $15–$80 |
| Unmetered air leak between the MAF and the throttle body — Cracked air intake boot is the classic cause. | Most common | $30–$250 |
| Loose or torn intake snorkel / accordion boot | Common | $30–$200 |
| Restricted or contaminated air filter | Common | $20–$80 |
| Failed MAF sensor element | Common | $80–$450 |
| Aftermarket "oiled" air filter contaminating the MAF | Occasional | $50–$200 |
| Damaged MAF wiring or connector | Occasional | $50–$250 |
Repair costs are typical US ranges and vary by Honda model, model year, and labor rate. A diagnostic trouble code is a symptom, not a guaranteed failed part — confirm the root cause before replacing anything.
P0101 by Honda model
Select your Honda model and year for a P0101 diagnosis tuned to that vehicle's failure patterns, recalls, and TSBs.
Honda CR-V
2,324 NHTSA owner complaints · 13 recalls on record across the years covered below.
Honda Civic
1,894 NHTSA owner complaints · 13 recalls on record across the years covered below.
Honda Accord
1,078 NHTSA owner complaints · 15 recalls on record across the years covered below.
Honda Pilot
1,176 NHTSA owner complaints · 16 recalls on record across the years covered below.
Honda HR-V
191 NHTSA owner complaints · 3 recalls on record across the years covered below.
Honda Odyssey
402 NHTSA owner complaints · 16 recalls on record across the years covered below.
Complaint and recall counts are NHTSA totals for the model years covered on this site, not counts specific to P0101.
P0101 on other makes
Other codes on Honda vehicles
P0101 on a Honda: frequently asked questions
What does diagnostic trouble code P0101 mean on a Honda?
P0101 is set when the ECM detects that the mass air flow sensor reading does not correlate with other engine load signals (throttle position, manifold absolute pressure, RPM, engine displacement). Either the MAF is reading too low for the actual engine load, too high, or its output is noisy. P0101 is not a "MAF dead" code — it specifically means the MAF is producing implausible readings rather than no readings at all. P0101 is a standardized OBD-II code, so the definition is the same on every Honda — which cause is most likely varies by model and engine.
What are the symptoms of P0101 on a Honda?
Check Engine Light is illuminated. Hesitation or stumble on acceleration. Reduced fuel economy. Possible rough idle. Power loss under heavy load. Often paired with P0171 (lean) or P0172 (rich)
What causes P0101 on a Honda?
Dirty MAF sensor (oil film or dust on the hot-wire elements) (most-common). Unmetered air leak between the MAF and the throttle body (most-common). Loose or torn intake snorkel / accordion boot (common). Restricted or contaminated air filter (common). Failed MAF sensor element (common). Aftermarket "oiled" air filter contaminating the MAF (occasional). Damaged MAF wiring or connector (occasional)
Is it safe to drive a Honda with P0101?
In most cases a Honda stays drivable for short trips with P0101 active, but it should be diagnosed and repaired promptly — this is a moderate-severity code. Ignoring it can lead to further damage or a failed emissions test. Exact tolerance depends on the model and engine.