P1486

Tests 1 - 2:

Tests 3 - 5:

Tests 6 - 7:

SYMPTOM
P1486 - EVAP LEAK MONITOR PINCHED HOSE FOUND

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

SET CONDITION
The state of the leak detection pump switch is not in its expected state at key-ON (engine not running). Or, following an engine start, a change in switch state is not seen when the LDP solenoid is energized to pull the pump diaphragm to its "up" position

POSSIBLE CAUSES
- Fuel tank to EVAP canister hose pinched
- LDP pressure hose blockage
- Purge solenoid to EVAP canister hose pinched
- Leak detection pump blockage
- Evaporative canister blockage LDP side
- Evaporative canister blockage solenoid side