EVAP System Leak Monitor
This monitor applies to DTCs P0441, P0442, P0451, P0452, P0455 and P0456. Following conditions must be met during the test:
- Engine coolant temperature must be 113°F (45°C) or less with engine off before test drive is started.
- Atmospheric temperature is 41-113°F (5-45°C).
- Selector lever is in "D" range (A/T).
- Test may not run if fuel tank is over 2/3 full.
Monitor takes about 8 minutes to complete. To run monitor, use illustration. See Fig 1 . Perform steps as follows:
- Remove all test equipment from vehicle and install all components and connectors that were removed or disconnected during testing.
- Start engine.
- Accelerate vehicle to 55-60 MPH.
- Travel for 200 seconds or more while keeping speed at 55-60 MPH. Use 5th gear on M/T.
- While keeping accelerator pedal position constant, keep vehicle speed at 55-60 MPH for 150 seconds or more (this is when monitor runs).
- Return vehicle to shop and turn ignition off.
- Recheck for DTC(s). If any DTC(s) is set, diagnose affected DTC(s). See DIAGNOSTIC TROUBLE CODE DEFINITIONS .