P1440 — Purge Valve Stuck Open

Q: "Can I drive with this code?"

"It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon."

Q: "Will this code clear itself?"

"Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first."

Q: "How do I find the exact cause?"

"A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component."

What Does P1440 Mean?

P1440 is a diagnostic trouble code indicating: Purge Valve Stuck Open. This code relates to the manufacturer-specific powertrain system. It has been reported in NHTSA complaints across 1 different vehicle models.

P1440 Reports by Year

2023

1

2024

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"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. Randomly, while driving, ON THE HIGHWAY, all the "
— Honda Civic owner, 05/19/2023

"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. The check engine, brake, transmission, and several other wa"
— Honda Civic owner, 10/15/2024

Source: NHTSA Complaints Database

Most Reported Vehicles for P1440

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	HONDA CIVIC

P1440 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

HONDA CIVIC

2 NHTSA reports · Peak: 2012, 2015

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1440: Purge Valve Stuck Open