Infiniti P1440: EVAP Canister System Small Leak (0.040") Detected:
Is your scanner showing Infiniti P1440?
No worries. We'll show you what it means and how to deal with it.
Infiniti P1440: EVAP Canister System Small Leak (0.040") Detected:
OVERVIEWWhat Does The Infiniti P1440 Code Mean?
Engine started, vehicle driven at cruise speed at light engine load, and the PCM detected a small leak present in the EVAP system with the Purge and Canister Control Vent solenoids “on” in the Leak test.
What Are The Potential Causes Of The Infiniti P1440 Code?
- Fuel filler cap loose, damaged or incorrect application
- EVAP canister vent valve is damaged or contaminated
- EVAP system leaks (in canister or related vapor lines)
- EVAP control system vapor pressure sensor line is blocked
- MAP/BARO switch sole
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Infiniti Fuel Filler Cap
>>> Evap Canister Vent Valve
>>> 10-23 Q50 EVAP Fuel Vapor Pressure Sensor
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Technical Service Bulletin EC10-038 for P1440 – 1998–later Infiniti vehicles with EVAP service port
