P2422 on Honda Civic
EVAP System Vent Valve Stuck Closed
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Honda Civic 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 P2422.
- 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 P2422 Means on Your Honda Civic
P2422 is a diagnostic trouble code indicating: EVAP System Vent Valve Stuck Closed. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Honda Civic Owner Reports
Source: NHTSA Complaints Database
"Check engine light came on. an independent garage scanned the code as p2422 evap emission system vent valve stuck closed. fuel tank does not seem to fill all the way, and sometimes a fuel oder is present. online search mentioned there is a technical service bulletin #11-036 for this code."
"I called honda customer care and they told me that the problem that i am experiencing is not covered any longer under the warranty. when i turned left, a clunking noise can be heard, at first i thought it was a drive axle."
"I had an engine light on on 8/5/2918 call dealer ship to set an appointment on 8/6/2018. advice found ftc p2422 evap cvs stuck closed indicating ftp sensor and canister malfunction, canister to malfunctioning due to the geographical are where vehicle is driven and park."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Honda Civic
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.