P1486

Tests 576 - 578:

Tests 579 - 581:

SYMPTOM
P1486 - EVAP LEAK MONITOR PINCHED HOSE FOUND

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

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
- Obstruction in hose/tube between EVAP canister and purge solenoid
- EVAP canister obstructed
- LDP pressure hose obstructed
- LEAK detection pump defective