Emission Control Systems

Canister purge control valve opening vacuum 180-220 mmHg (7.1-8.7 in.Hg)
Evaporative emission check and relief valve:
Check valve opening vacuum 20-40 mmHg (0.8-1.6 in.Hg)
Relief valve opening vacuum 5-20 mmHg (0.2-0.8 in.Hg)
EFE system cut-off temperature 70~±5~C (158±9~F)
EGR thermal vacuum valve opening temperature 46~-54~C (115~-129~F)
EGR valve operating vacuum:
Starting 40 mmHg (1.6 in.Hg)
Fully open 100 mmHg (3.9 in.Hg)
Back pressure transducer control pressure [1]:
Off less than or equal to 53.5 mmAq (2.1 inAq)
On more than or equal to 81.5 mmAq (3.2 inAq)
Thermo sensor operating temperature (air cleaner):
Starting 38~C (100~F)
Fully open 44~C (111~F)
Vacuum motor (air cleaner):
Opening vacuum 60±20 mmHg (2.4±0.8 in.Hg)
Full open vacuum 100±20 mmHg (3.9±0.8 in.Hg)
Idle compensator operating temperature (air cleaner):
Starting 46~C (115~F)
Fully opened 52~C (126~F)

[1] Aq signifies water