EVAP System Leak Monitor

Evaporative emission control system leak monitor (P0422, P0450, P0455)

Test requirements/procedure
1. All of the following requirements should be met when carrying out a drive test.
1. Engine coolant temperature: 45 °C (113 °F) or less (before starting drive test, engine stopped)
2. Atmospheric temperature: 5 °C (41 °F) or more, 45 °C (113 °F) or less
3. Condition of A/T:
- Selector lever position: D range
- Overdrive switch: ON

2. One trip monitor will be completed by driving according to the steps below (from start to switch off). (It takes approx. 8 minutes.)
*1: Check that both engine coolant temperature and air intake temperature satisfy requirement 1 (engine stopped).
*2: Monitor preparation period; Start the engine, and accelerate to 89 - 97 km/h (55 - 60 mph). For this period, acceleration, deceleration, or braking may be carried out.

Continue driving between 89 and 97 km/h (55 and 60 mph) for 200 seconds or more. For this period, braking or throttle operation may be carried out if vehicle speed is within the specified value.

<>3: Drive between 89 and 97 km/h (55 and 60 mph) at a constant throttle angle (by not moving the throttle pedal as much as possible) for 150 seconds or more during monitor. Moreover, do not turn the steering wheel suddenly.
*4: Decelerate and stop the vehicle. After slop, turn off the ignition switch.

DRIVE CYCLE PATTERN: