Typical Enabling Conditions
WARNING: This page is about a different variant/trim than selected.
Common pre-conditions for 0.020 and 0.040 inch leak detections:
TYPICAL ENABLING CONDITIONS CHART
| Monitor runs whenever following DTCs not present | See LIST OF DISABLE A MONITOR |
| Altitude | 7,874 ft (2,400 m) |
| Battery voltage | 11 V or more |
| Throttle valve position learning | Completed |
| Vapor pressure sensor | No malfunction |
| Difference between intake air temperature and engine coolant temperature at engine start | Between-7°C and 11.1°C (-12.6°F and 20°F) |
| VSV for EVAP, CCV, VSV for pressure switching valve | Not operated by hand-held tester |
0.020 inch malfunction detection:
TYPICAL ENABLING CONDITIONS CHART (0.020 INCH MALFUNCTION DETECTION)
| Engine coolant temperature at engine start | Between 10°C and 32°C (50°F and 89.6°F) |
| Intake air temperature at engine start | Between 10°C and 32°C (50°F and 89.6°F) |
| Intake air temperature | 10°C (50°F) or more |
| Vehicle speed before negative pressure introduction | Steady speed |
| Either of following conditions (a) or (b) met | - |
| (a) Purge duty cycle | 15 % or more when intake air amount 8 g/sec or more |
| (b) Purge concentration for 30 seconds | -5 %/% or more when vehicle speed less than 6 mph (10 km/h) |
| Fuel level condition in fuel tank during leak check | Fuel slosh small (must not drive on road with bad conditions) |
| Time after engine start | Less than 50 minutes |
| Fuel tank pressure condition before leak check (Fuel tank condition before closed negative pressure introduction) | Fuel tank pressure change small before negative pressure introduction (Reference: If fuel temperature in tank high, vapor volume increases and fuel tank pressure change also increases) |
| Fuel tank level | Less than 90% full |
| 0.040 inch leak detection | Not detected |
| VSV for CCV malfunction, bypass VSV malfunction | Not detected |
| Vehicle speed | Less than 81 mph (130 km/h) |
| VSV for EVAP (purge VSV) malfunction | Not detected |
0.040 Inch malfunction detection:
TYPICAL ENABLING CONDITIONS CHART (0.040 INCH MALFUNCTION DETECTION)
| Engine coolant temperature at engine start | Between 10°C and 35°C (50°F and 95°F) |
| Intake air temperature | 10°C (50°F) or more |
| Vehicle speed before negative pressure introduction | Steady speed |
| Either of following conditions (a) or (b) met | - |
| (a) Purge duty cycle | 15 % or more when intake air amount 8 g/sec or more |
| (b) Purge concentration for 30 seconds | -5 %/% or more when vehicle speed less than 6 mph (10 km/h) |
| Fuel level condition in fuel tank during leak check | Fuel slosh small (must not drive on road with bad conditions) |
| Time after engine start | Less than 50 minutes |
| Fuel tank pressure condition before leak check (Fuel tank condition before closed negative pressure introduction) | Fuel tank pressure change small before negative pressure introduction (Reference: If fuel temperature in tank high, vapor volume increases and fuel tank pressure change also increases) |
| Fuel tank level | Less than 90 % full |
| Fuel tank pressure when vacuum introduction completed | -2.4 kPa (-18 mmHg) or more |
| VSV for EVAP (purge VSV) malfunction | Not detected |