Emission Control Systems: Specifications

EGR valve vacuum signal less than 250 mmHg (10 inHg)
Canister purge TVS coolant temperature opening 46~C (115~F)
THERMAC temperature sensor:
Below 30~C (86~F) damper door closed to outside air
Above 55~C (131~F) damper door open to outside air
THERMAC vacuum motor 175 mmHg (7 inHg)