1. If the engine is already out of the vehicle, go to step
20.
2. Raise the vehicle on the lift to full height.
3. Drain the engine oil.
4. Remove the front wheels.
5. Remove the splash shield (see step 21).
6. Disconnect the air fuel ratio (A/F) sensor connector
and secondary heated oxygen sen
DTC P0455: EVAP System Large Leak
Detected
DTC P0456: EVAP System Very Small Leak
Detected
NOTICE
The fuel system is designed to allow specified
maximum vacuum and pressure conditions. Do not
deviate from the vacuum and pressure tests as
indicated in these procedures. Excessive pressure/
vacuum wou