P0303 on Honda Cr-V
Cylinder 3 Misfire Detected
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Honda Cr-V context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0303.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P0303 Means on Your Honda Cr-V
P0303 is a diagnostic trouble code indicating: Cylinder 3 Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Honda Cr-V Owner Reports
Source: NHTSA Complaints Database
"All lights on dash coming on. Codes p0172 and p0303 pop up on obd scanner. Mafs , spark plugs, ignition coils and air filters all replaced. Car goes into limp mode. 124,800 miles. Dealer says fuel injectors failed and needs replacing, research shows this is a common issue for the."
"In June 2024 the first warning that appeared was an emissions warnings. The vehicle seemed to be running fine despite the warning. After the warning was cleared, the vehicle continued to run well."
"The vehicle experienced multiple system failures, indicated by error messages in 11 different systems, including the check engine light."
"All of my warning lights are on. The above checklist only lets me pick 3 items total but every warning light is on."
"My 16 year old son was driving the vehicle when all of the lights on the dashboard started flashing and alarms started sounding. As a new driver he found this really alarming and didn't know what to do."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Honda Cr-V
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.