P1440 on Honda Civic
Purge Valve Stuck Open
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 P1440.
- 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 P1440 Means on Your Honda Civic
P1440 is a diagnostic trouble code indicating: Purge Valve Stuck Open. This code relates to the manufacturer-specific 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
"https://electricvehicleforums.com/forums/honda-civic-hybrid-12/civic-hybrid-ima-failure-bad-power-inverter-32102/index6.html On this link, there is a form of several other individuals experiencing the same issue that I experienced with this vehicle."
"The contact owns a 2015 Honda Civic. The contact stated that while driving at an undisclosed speed, the accelerator pedal and brake pedal felt stiff and the vehicle had jolted while depressing the brake pedal before losing automotive power."
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
-
1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
-
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.
-
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.