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Symptom List:
P0442-EVAP LEAK MONITOR MEDIUM LEAK DETECTED
P0455-EVAP LEAK MONITOR LARGE LEAK DETECTED
P0456 - EVAP LEAK MONITOR LEAK DETECTED
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0442-EVAP LEAK MONITOR
MEDIUM LEAK DETECTED.
When Monitored and Set Condition:
P0442-EVAP LEAK MONITOR MEDIUM LEAK DETECTED
When Monitored: Immediately after a cold start, with battery/ambient temperature
between 4°C (40°F) and 32°C (90°F) and coolant temperature within -12°C (20°F) of
battery/ambient.
Set Condition: If there is a leak larger than 0.040 and smaller than 0.080 in the
evaporative system.
P0455-EVAP LEAK MONITOR LARGE LEAK DETECTED
When Monitored: Immediately after a cold start, with battery/ambient temperature
between 4°C (40°F) and 32°C (90°F) and coolant temperature within -12°C (10°F) of
battery/ambient.
Set Condition: There is a leak larger than 0.080 in the evaporative system.
P0456 - EVAP LEAK MONITOR LEAK DETECTED
When Monitored: Immediately after a cold start, with battery/ambient temperature
between 4°C (40°F) and 30°C (86°F) and coolant temperature within -12°C (10°F) of
battery/ambient.
Set Condition: If there is a leak larger than 0.020 and smaller than 0.040 in the
evaporative system.
GOOD TRIP EQUAL TO ZERO
EVAPORATIVE EMISSION LEAK DETECTION
EVAP PURGE SOLENOID LEAKS/STUCK OPEN
INTERMITTENT LDP MONITOR FAILURE
POSSIBLE CAUSES
139
DRIVEABILITY - GAS
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