Details On DTCs
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| DESCRIPTION |
Evaporator system: abnormal negative pressure in fuel tank |
| DETECTION CONDITION |
Determination conditions |
- Target negative pressure exceeding the specified time or more is generated from negative pressure inducted to the fuel tank by the operation of the purge solenoid valve after the fuel tank is sealed (CV solenoid valve ON).
|
| Preconditions |
- Period ignition is switched off before engine is started: 120 min or more
- Engine coolant temperature at engine start: 1.67-43.33 °C {35.1-109.9 °F}
- Time elapsed from engine start: 5.5-90 min
- Fuel level in fuel tank: 10-90 %
- Desired ambient air temperature: 4.4-43.3 °C {40-109 °F}
- Barometric pressure: 72.23 Pa {7.365 kgf/m2
, 0.01048 psi} or more
- Charging efficiency: 3-65 %
- Vehicle speed: 64-144.8 km/h {40.00-89.97 mph}
- Purge flow amount: 15 l/min or more
|
| Malfunction determination period |
|
| Drive cycle |
|
| Self test type |
|
| Sensor used |
- Fuel tank pressure sensor
|
| FAIL-SAFE FUNCTION |
|
| VEHICLE STATUS WHEN DTCs ARE OUTPUT |
- Illuminates check engine light.
|
| POSSIBLE CAUSE |
- Fuel tank pressure sensor malfunction
- Restriction between charcoal canister and release-side passage
- CV solenoid valve malfunction
- Evaporative chamber malfunction
- Charcoal canister malfunction
- Clogging between fuel tank and fuel tank pressure sensor
- Purge solenoid valve malfunction
- PCM malfunction
|