Emission Control Systems: Specifications

Canister purge control valve opening vacuum 90±20 mmHg (3.7 inHg)
Evaporative emission check and relief valve:
Opening pressure from fuel tank to canister 40 mmHg (1.6 inHg)
Opening vacuum from air cleaner to fuel tank 20 mmHg (0.6 inHg)
EGR thermal vacuum valve opening temperature 50~C (122~F)