P0442 EVAP Leak Monitor Small Leak Detected
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P-0442 EVAP LEAK MONITOR SMALL LEAK DETECTED
P-0455 EVAP LEAK MONITOR LARGE LEAK DETECTED
TEST NOTE: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P-0442 EVAP LEAK MONITOR SMALL 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 0.040" and smaller 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