P1486

Test 1:

Tests 2 - 3:

Tests 4 - 6:

SYMPTOM
P1486-EVAP LEAK MONITOR PINCHED HOSE FOUND

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
LDP test must pass first. If the PCM suspects a pinched hose it will not set a fault until it runs the evap purge flow monitor. If the purge monitor does not pass then the pinched hose fault will be set.

POSSIBLE CAUSES
- Intermittent LDP monitor failure
- Obstruction in EVAP system between EVAP canister and fuel tank
- EVAP canister obstructed
- Obstruction in hose/tube between EVAP canister and purge solenoid
- LDP pressure hose obstructed
- Leak detection pump