Owner Notification Letter - On some 2018-2019 Fit vehicles, a combination of carbon deposits on the intake valves and the PGM-FI software settings may lead to reduced combustion stability under certain circumstances. This results in a misfire being detected and Malfunction Indicator Lamp (MIL) being illuminated.
full bulletin at NHTSA ↗2019 Honda Fit engine problems
severe Owners of the 2019 Honda Fit have filed 12 NHTSA complaints about the engine at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Complaints
12
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2015 Fit | 25 |
| 2016 Fit | 4 |
| 2017 Fit | 6 |
| 2018 Fit | 12 |
| 2019 Fit (this page) | 12 |
| 2020 Fit | 5 |
1crash
1injury
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Dealer Message - American Honda is announcing a warranty extension for certain 2018-2019 Fit vehicles. American Honda is extending the warranty coverage for valve cleaning and software installation due to carbon buildup on the valves with misfire DTCs (P0300-P0304) on these vehicles to 10 years or 150,000 miles from the original date of purchase, whichever comes first.
full bulletin at NHTSA ↗Service Bulletin - The MIL comes on with DTC P0300 (random misfire detected) or P0301âP0304 (cylinder misfire detected) due to carbon buildup on the intake valves may be affecting combustion.
full bulletin at NHTSA ↗Service Bulletin - A combination of carbon deposits on the intake valves and the PGM-FI software settings may lead to reduced combustion stability under certain circumstances. This results in a misfire being detected and DTC stored.
full bulletin at NHTSA ↗"Service news article - When diagnosing a Fit within the above VIN range with a misfire complaint, start by doing service bulletin, 21-007 (Carbon Buildup with Misfire DTCs) instead of replacing fuel injectors. These vehicles use an improved injector design that addresses the failures that may have occurred in previous model years. In fact, fuel injectors within the above VIN range with misfire complaints were collected and found to have no defects that required part replacement. Replacing those injectors may have reduced the number of misfires temporarily, but most likely didnât address the actual cause of the misfire. The recommended repair for these vehicles is to do the intake valve cl
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2019 Honda Fit shows a consistent thread of fuel system trouble. Multiple owners describe dashboard warning lights (Check Engine, TPMS, VSA, Electric Power Steering) lighting up all at once, with diagnostic codes pointing to cylinder misfires—primarily P0304. Dealers attribute this to carbon buildup and fuel injector failure. Owners report premature fuel injector replacement demands at 35,000–80,000 miles, often just outside or barely within the factory warranty window.
One complaint references a 2020 recall for a fuel pump module that could deform and cause stalling. Several owners found that Honda issued extended warranty coverage (Service Bulletins 21-007 and 23-042) for some vehicles, but their own VIN wasn't eligible despite the same symptoms.
Beyond the fuel system, one owner experienced catastrophic engine failure weeks after an oil change at a dealership, traced to an improperly tightened drain plug causing complete loss of lubrication. Another reported unintended acceleration in the driveway followed by non-responsive brakes, resulting in a crash and injury.
Owners consistently note that repair costs fall outside factory coverage, and some point to extended fuel injector warranties on other Honda models as evidence the problem is industry-wide.
Same Honda Fit engine reports on nearby years: 2018
Failure modes owners describe
Oil Drain Plug Loosening
Improperly tightened oil drain plug and crush washer after service leading to catastrophic loss of engine lubrication.
When: Shortly after oil change service in December 2023
Symptoms owners cite: dashboard lights illuminated without warning; loud popping sounds; engine smoking; vehicle stalled; complete engine failure at highway speed
Repairs/costs cited: Dealership investigation confirmed improper tightening of drain plug and crush washer as root cause; full engine damage incurred
Recalls/TSBs owners mention: Owner reported Indy Honda refused to take responsibility despite evidence
Fuel Pump Module Failure (Recall)
Fuel pump module impellers absorbing excessive fuel and deforming, causing engine stalling and driving hesitation.
When: Identified at 1,746 miles on 2020 recall notice
Symptoms owners cite: vehicle hesitation while driving; car stopping while in motion; engine stalling
Repairs/costs cited: Recall parts unavailable; owner unable to drive vehicle
Recalls/TSBs owners mention: Honda recall 5/29/2020 for fuel pump module impellers; parts delayed until summer per dealer
Carbon Buildup and Misfires
Carbon buildup in fuel system causing engine misfires and dashboard warning light cycling.
When: Unknown mileage
Symptoms owners cite: all dashboard warning lights cycling through on startup; engine misfires
Codes mentioned: P0300, P0301, P0302, P0303, P0304
Repairs/costs cited: Maintenance cleared error code
Recalls/TSBs owners mention: Honda Service Bulletin 23-042 provides warranty extension but vehicle VIN not included in eligible range; related NHTSA complaints #11462041, #11490506, #11549767, #11593466
Unintended Acceleration and Brake Failure
Accelerator pedal engaged without driver input while idling in driveway; brake pedal subsequently failed to respond.
When: Unknown mileage
Symptoms owners cite: vehicle accelerated without pedal input; brake pedal unresponsive; vehicle crashed into building, hose, and palm tree
Repairs/costs cited: Vehicle not diagnosed or repaired; owner sustained knee injuries requiring medical attention
Recalls/TSBs owners mention: Manufacturer not notified; no police report filed
Fuel Injector Failure with Emission System Malfunction
Faulty fuel injector causing hard acceleration, sputtering, and emission system warning on dash.
When: Freeway driving, unknown mileage
Symptoms owners cite: emission system problem warning light; check engine light; difficulty accelerating; engine sputtering and stopping
Codes mentioned: P219A
Repairs/costs cited: Dealer diagnosed faulty fuel injector
Cylinder Misfire (P0304)
Engine misfire in cylinder #4 causing warning light illumination, repair denied outside warranty despite applicable service bulletin.
When: 55,666 miles
Symptoms owners cite: multiple dashboard warning lights illuminated; engine misfire in cylinder #4
Codes mentioned: P0304
Repairs/costs cited: Vehicle repaired but owner responsible for cost
Recalls/TSBs owners mention: Manufacturer confirmed dealer diagnosis and provided case number but repair not covered; Technical Service Bulletin 21-007 referenced but warranty not applicable
Widespread Misfire and Fuel Injection Issue
Multiple dashboard warnings (Check Engine, TPMS, VSA, EPS) appearing simultaneously linked to P0304 misfire and fuel injector problems.
When: Unknown mileage
Symptoms owners cite: Check Engine Light; Tire Pressure Monitoring System light; Vehicle Stability Assist System light; Electric Power Steering light; all appearing at once
Codes mentioned: P0304
Repairs/costs cited: Repair not covered under warranty
Recalls/TSBs owners mention: Extended warranty available for fuel injector replacement on some 2019 Honda Fits per Service Bulletins 23-042 and 21-007, but not applicable to this vehicle for unknown reason
Premature Fuel Injector Failure
Fuel injectors failing at relatively low mileage, causing check engine light and requiring full system replacement outside warranty period.
When: 65,000 miles and 80,000 miles reported; owner notes warranty ends around 60,000 miles
Symptoms owners cite: check engine light; engine misfires
Repairs/costs cited: Full fuel injector system replacement required; owner reports fuel pump recall exists on 2015-2016 models with extended warranty coverage on fuel injectors
Recalls/TSBs owners mention: Extended warranty on fuel injectors applied to other Honda models but not to this 2019 Fit despite similar issue pattern
Early Fuel Injector System Failure
Complete fuel injector system failure occurring at very low mileage, causing misfire and requiring replacement.
When: Under 35,000 miles
Symptoms owners cite: misfire from fuel injector
Repairs/costs cited: Complete fuel injector system replacement required
Synthesized from 12 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 5 most recent
The contact owns a 2019 Honda Fit. The contact stated that while entering the driveway while idling, the accelerator pedal was not depressed when the vehicle accelerated inadvertently. The brake pedal was then depressed but failed to respond. As a result, the vehicle crashed into a building, a hose, and a palm tree where it came to a stop. The vehicle remained at the scene of the crash. The…
Dear NHTSA, I am submitting a complaint regarding unsafe vehicle service practices by Indy Honda, located in Indianapolis, Indiana. On December 8, 2023, I had my 2019 Honda Fit serviced at their dealership, including an oil change. On [XXX], while traveling on the interstate in Kentucky, my vehicle suddenly experienced a catastrophic engine failure. The vehicle’s lights illuminated without…
Engine light came on and it was brought to the dealership and I was told all fuel injectors need to be replaced and it wouldn't be under warranty. The car has 65,000 miles on which is just over warranty, but I should still not have had to replace these yet. There have been other problems with the fuel system with the fuel pump recall and they have extended the warranty on fuel injectors in other…
Four dashboard warning signs (Check Engine Light, Tire Pressure Monitoring System, Vehicle Stability Assist System, Electric Power Steering) appeared all at once suddenly. I had the vehicle towed to my local Honda dealership. They gave me a diagnostic code of P0304 and insisted that the repair did not fall under my car's active warranty. I searched the web and found it is a common problem in…
While driving the emission system problem warning came up on my dash with the check engine light. After this happened it became incredibly hard to accelerate the engine. I was driving on the freeway and attempting to merge putting my life and my families at risk because the engine was trying to accelerate but sputtering and stopping for a moment instead. It hasn’t been inspected by police, but…
Had engine trouble with your 2019 Honda Fit?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2019 Honda Fit?
It's a meaningful issue. 12 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Based on the 12 complaints filed, engine issues most often appear around 28,706 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2019/Honda/Fit.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.