The Lemon IndexCylinder 1 is not firing properly, so the engine runs rough and loses some power. Full P0301 page
27 owner complaints · the #4 code Honda Odyssey owners name · 10% of Honda Odyssey complaints that name a code (every car: 2.2%)
Middle of 110,000 miles · most between 90,000 and 164,000 (6 owners gave it)
Honda Odyssey owners named P0301 in 27 complaints to the U.S. government (NHTSA), most often on the 2013, 2015 and 2016 model years, at a middle of 110,000 miles. The part they name most is the spark plugs (15 complaints). Complaints are owner reports, not proof of a defect.
Honda Odyssey model years that report P0301
Owner complaints naming P0301, by model year. Raw counts: years that sold more get more complaints, so this is each model year's record, not a failure rate.
Mileage when it happened
110,000 miles is the middle of what 6 owners entered. Half were between 90,000 and 164,000 miles.
The mileage on the complaint form, when the owner gave one.
What owners say caused it or fixed it
The most-named part is the spark plugs, in 15 of the 27 complaints (56%). 11 of those mention it being replaced or repaired, and 5 say the problem came back afterwards. Next: pistons, rings or valves (14), ignition coils (6) and engine software (a reflash) (4).
- Spark plugs15 complaints11 mention a repair or replacement, 5 of them say the problem came back · what Honda Odyssey owners paid
- Pistons, rings or valves14 complaints7 mention a repair or replacement, 2 of them say the problem came back
- Ignition coils6 complaints4 mention a repair or replacement, 3 of them say the problem came back · what owners paid
- Software update (reflash)4 complaints3 mention a repair or replacement
- Engine replaced or rebuilt3 complaints3 mention a repair or replacement, 2 of them say the problem came back · what Honda Odyssey owners paid
- Engine computer (ECM / PCM)3 complaints1 mentions a repair or replacement · what owners paid
8 complaints mention a recall and 17 mention a warranty.
Counted from the owners' own words: a part counts when a sentence names it with a cause or repair word. What owners wrote, not a diagnosis. A shop should confirm the cause before replacing parts.
Symptoms owners describe with P0301
56% of these complaints say the check engine light came on.
- Shakes, runs rough or misfires81%22 of 27 complaints
- Uses or leaks oil30%8 of 27 complaints
- Transmission slips or shifts hard15%4 of 27 complaints
- Warning lights and electrical faults15%4 of 27 complaints
- Loses power or goes into limp mode11%3 of 27 complaints
- Stalls or shuts off7%2 of 27 complaints
Share of the complaints naming P0301 whose text also describes each problem. A complaint can describe more than one.
Codes owners report with it
P0304 15 P0303 3 P0302 2 P0306 2
Other codes named in the same Honda Odyssey complaints, and in how many.
Repair costs
- Spark plug replacement$166, $1,8592 bills
- Brake repair$1,5001 bill
- Ignition coil replacement$2551 bill
Repair bills owners named in these 27 complaints (4 in all). Owner reports, not a quote: costs vary by shop and region.
Honda Odyssey engine replacement cost
Recalls on these Honda Odyssey years
- Engine · 2018, 2019 · issued 2023
Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine. NHTSA 23V751000 - Engine · 2019 · issued 2019
The timing belt teeth may separate from the belt. NHTSA 19V298000 - Engine · 2013 · issued 2013
During manufacturing of the engine piston, it is possible that the heat treatment process was not properly applied, resulting in the piston having an insufficient hardness level, making it more susceptible to premature w… NHTSA 13V382000
3 recalls for the same systems (engine) on the Honda Odyssey model years above. A recall for the same system isn't proof it's behind P0301. Recall work is free at any dealer: check a VIN at nhtsa.gov/recalls or with our VIN check.
Keep going
- P0301: meaning, causes and every car that reports it
- Honda Odyssey reliability by year
- 2013 Honda Odyssey problems and recalls
Other codes Honda Odyssey owners report
U3000 P0740 P0730 P0304 P0303 P219A P0302 P0420 P3400 P3497
P0301 on other cars
Ford Escape (53) · Ford Edge (43) · Ford Fusion (23) · Honda Accord (18) · Honda CR-V (17) · Honda Pilot (10)
The details
How we count
We read every owner complaint in the NHTSA file whose text names this trouble code, and count the ones filed about this model (matched by the make, model and model year on the complaint). Mileage is what the owner entered on the form.
Parts: a complaint counts for a part when one of the owner's own sentences names that part together with a cause word (failed, bad, diagnosed, caused by, leaking ...) or a repair word (replaced, repaired, new, reprogrammed ...). "Came back" means the same complaint also says the problem returned or the repair didn't fix it. These are counts of what owners wrote, not a diagnosis, and one complaint can name several parts.
Complaints are reports, not proof of a defect, and most owners never file one. Popular models get more complaints, so the counts are not a failure rate. The code meaning is the standard SAE J2012 definition in our own words, or the carmaker's meaning where we verified it for that make.
What P0301 means
Cylinder 1 is not firing properly, so the engine runs rough and loses some power. A flashing check engine light means the misfire is serious enough to damage the catalytic converter, so slow down and get it checked right away.
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
- Spark plug or ignition coil on cylinder 1
- Fuel injector on cylinder 1
- Vacuum leak near that cylinder
- Low compression (valve or piston ring problem)
Check the complaints yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11753638, 11753339, 11746848, 11733880, 11725894, 11724102, 11720425, 11716004, 11701010, 11698536, 11684172, 11683475 and 15 more.
Quick answers
What does P0301 mean on a Honda Odyssey?
Cylinder 1 Misfire Detected. Cylinder 1 is not firing properly, so the engine runs rough and loses some power. A flashing check engine light means the misfire is serious enough to damage the catalytic converter, so slow down and get it checked right away.
Which Honda Odyssey years have the most P0301 complaints?
In complaints to NHTSA, owners of the 2013 (9), 2015 (6), 2016 (5) Honda Odyssey named P0301 most (27 complaints in all, 2003–2019). Raw counts, not a failure rate.
What fixes P0301 on a Honda Odyssey?
Owners most often name the spark plugs (15 of 27 complaints), then pistons, rings or valves and ignition coils. That's what owners wrote, not a diagnosis: have a shop confirm the cause with a scan and tests before replacing parts.
At what mileage does P0301 show up on a Honda Odyssey?
Owners who gave their mileage reported a middle of 110,000 miles; half were between 90,000 and 164,000 (6 owners).
Can I drive my Honda Odyssey with P0301?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
Sources: NHTSA owner complaints that name P0301 on the Honda Odyssey, counted by The Lemon Index; NHTSA recalls; repair bills owners named. Meanings: SAE J2012 in our own words. Owner reports, not a diagnosis or repair advice for your car.