P1486

Tests 1 - 2:

Tests 3 - 5:

Tests 6 - 9:

SYMPTOM
P1486 EVAP LEAK MONITOR PINCHED HOSE FOUND

WHEN MONITORED
Immediately after a cold start, with battery/ambient temperature between 40 °F and 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
- Leak detection pump
- Purge hose plugged from LDP to canister
- Purge hose plugged from solenoid to EVAP canister
- Purge hose plugged from tank to canister
- Vacuum line obstructed from purge solenoid to throttle body
- Evaporative canister defective