P1486

Tests 1 - 2:

Tests 3 - 5:

Tests 6 - 7:

SYMPTOM
P1486 - EVAP LEAK MONITOR PINCHED HOSE FOUND

WHEN MONITORED
Ambient temperature between 4 °C (40 °F) & 32 °C (90 °F), & coolant temp within 12 °C (10 °F) of ambient. If PCM suspects pinch, no fault until runs EVAP purge flow monitor. Purge flow monitored w/engine temp > 76 °C (170 °F), engine in closed loop, idle 2 mm, no low fuel, MAP < 15.7 in.Hg, & barometric altitude < 8000 ft.

SET CONDITION
LDP must pass stricter EVAP system test first. No air flow through the evaporative system is detected by the EVAP monitor.

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
- EVAP leak monitor pinched hose does not reoccur