EVAP System Leak Monitor

This monitor applies to DTCs P0442, P0450, P0451 and P0455. Following conditions must be met during the test:

• Before starting test, with engine stopped, engine coolant temperature must be 113°F (45°C) or less.
• Atmospheric temperature is 41-113°F (5-45°C).
• On A/T, selector lever is in "D" range.
• On A/T, overdrive switch is in ON position.

Monitor takes about 8 minutes to complete. To run monitor, use illustration. See Fig 1 . Perform steps as follows:

1. Remove all test equipment from vehicle and install all components and connectors that were removed or disconnected during testing.
2. With engine stopped, ensure that engine coolant temperature is 113°F (45°C) or less. Ensure that intake air temperature is 41-113°F (5-45°C).
3. Start engine and accelerate to 55-60 MPH.
4. Travel for 200 seconds or more while keeping speed at 55-60 MPH. On M/T, use 5th gear.
5. While keeping accelerator pedal position constant, keep speed at 55-60 MPH for 150 seconds or more (during monitor).
6. Return vehicle to shop and turn ignition off.