P1440
EVAP Control System Small Leak
1999-2002 Nissan Quest 3.3L V6 VG33E
Low SeverityPowertrain
Description
Small leak detected during EVAP system pressure test.
Symptoms
- CEL
- Fuel odor possible
- Failed emissions
Common Causes
- Loose fuel cap
- Faulty purge valve
- Cracked canister
- Damaged EVAP hoses
Diagnostic Steps
- Check fuel cap
- Smoke test EVAP system
- Test purge valve
- Inspect hoses
Repair Notes
Tighten fuel cap or repair EVAP leak.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1440 on Other Vehicles
Nissan 200SX
1995-1998 1.6L I4 GA16DE
Nissan 200SX SE-R
1995-1998 2.0L I4 SR20DE
Nissan 240SX
1995-1998 2.4L I4 KA24DE
Nissan 300ZX
1990-1996 3.0L V6 VG30DE
Nissan 300ZX Twin Turbo
1990-1996 3.0L Twin-Turbo V6 VG30DETT
Nissan 350Z
2003-2006 3.5L V6 VQ35DE
Nissan 350Z
2007-2009 3.5L V6 VQ35HR
Nissan 370Z
2009-2020 3.7L V6 VQ37VHR
Common Questions
What does code P1440 mean on a 1999-2002 Nissan Quest?
P1440 stands for "EVAP Control System Small Leak". Small leak detected during EVAP system pressure test.
What are the symptoms of P1440 on a Nissan Quest?
Common symptoms of P1440 include: CEL, Fuel odor possible, Failed emissions.
What causes P1440 on a 1999-2002 Nissan Quest?
Common causes of P1440 include: Loose fuel cap, Faulty purge valve, Cracked canister, Damaged EVAP hoses.