2018 Honda Fit · symptom sheet
Check engine light or misfire
- 26owner reports
- 54,000median miles
- $885median quote
- 1involved a crash
Newest report Jun 25, 2026 · checked Oct 2, 2026
83 of the 117 complaints on this car are about the fuel and propulsion. 26 of those describe misfire. Only infotainment is reported more often on this car.
Tick what matches of 26 reports
Misfire on other Fit years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2015, 2016.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the injectors (15 reports), the spark plugs (4 reports) and the ignition coils (3 reports).
Recalls and investigations
One recall on the fuel and propulsion covers the 2018 model year. A recall on the same system isn't always the same failure, so read the defect text.
The fuel pump inside the fuel tank may fail.
All 4 recalls on the 2018 Honda Fit, with the owner complaints on each recalled system
What owners paid
5 of the 26 reports quote a price. Each dot is one quote. The middle half runs $604 to $950.
When it happens
The middle half of failures fell between 31,000 and 85,000 miles, from the 17 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 11 service bulletins or notices for the 2018 Honda Fit that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
American Honda Motor Co., Inc. (AHM) is searching for certain 2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 [Catalyst System Efficiency Below Threshold] stored.
American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 (Catalyst System Efficiency Below Threshold) stored.
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.
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 ...
7 more on the 2018 Honda Fit page.
What owners wrote
“This is after the recall on 2018-19 Fit Carbon Buildup with Misfire DTCs under codes P0300-P0304) and after fuel injectors are replaced. Current problem is with combination of carbon deposits on intake valves. Failing fuel injector/s causing an incorrect air/fuel ratio with code under P0172.”
Filed Sep 25, 2025
“Check engine light with Code P219A. Honda dealer performed a cylinder A/F Imbalance test and recommended that the Fuel injectors be replaced. This appears to be a common problem with Honda Fits. The injectors are just as bad the recalled 30520-5R0-013 injectors. Honda claims the 2018 vehicles do not have those injectors. I beleive this vehicle has the same defective 30520-5R0-013 injectors.”
Filed Oct 25, 2024
“Misfire codes that indicate a bad fuel injection system, including issues with previous models for the same issue. My car was running very roughly and stuttering at high speeds. An independent garage confirmed that the car had bad fuel injectors at only 80,000 miles and it cost $950 to fix. I had 6 check engine lights appear from this issue. Honda refuses to acknowledge or do anything about it.”
Filed Aug 20, 2024 · 80,000 miles
“Multiple warning lights came on at the same time. OBD reader showed code 0302 (cylinder 2 misfire). Dealer performed warranty extension program to media blast the inlet valves. This was unsuccessful and the dealer now suggests that all 4 fuel injectors need replacing. The car has recorded 45k miles since new in 2018.”
Filed Jun 28, 2024 · 45,000 miles
Should you keep driving it?
This page can't tell you that. 1 of 26 reports involved a crash and 5 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Infotainment, screen or backup camera fails 28 reports