P0455

Tests 846 - 848:

Tests 849 - 850:

SYMPTOM
P-0455 EVAP LEAK MONITOR LARGE LEAK DETECTED

WHEN MONITORED
Immediately after a cold start, with ambient temperature between 40 degrees F and 90 degrees F and coolant temperature within 10 degrees F of ambient temperature.

SET CONDITION
If there is a leak larger than 0.080" in the evaporative system.

POSSIBLE CAUSES
- Evap system hoses or wiring damaged
- Evap system component leaking
- Leak detection pump leaking
- Evap leak monitor small or large does not reoccur