Exhaust Gas Recirculation

4A-F ENGINE (CARBURETED)

EVAP Temperature Switch
Below 43°C (109°F) ON (Continuity)
Above 55°C (131°F) OFF (No Continuity)

Spark Control BVSV
Below 50°C (122°F) Closed (Max. Advance)
Above 54°C (129°F) Open (Normal Advance)

EGR TVSV
Below 50°C (122°F) Closed (EGR Disabled)
Above 68°C (154°F) Open (EGR Enabled)

HAI Control Valve (HIC)
Below 22°C (72°F) Intake Air Hot
Above 29°C (84°F) Intake Air Cool

Engine Vacuum At Idle 450 mmHg (17.72 in.Hg, 60 kPa) or more


4A-FE ENGINE (FUEL INJECTED)

EVAP BVSV
Below 35°C (95°F) Closed (EVAP Disabled)
Above 50°C (122°F) Open (EVAP Enabled)

EGR BVSV
Below 35°C (95°F) Closed (EGR Disabled)
Above 56°C (133°F) Open (EGR Enabled)

Engine Vacuum At Idle 450 mmHg (17.72 in.Hg, 60 kPa) or more


4A-GE ENGINE (FUEL INJECTED)

EVAP BVSV
Below 35°C (95°F) Closed (EVAP Disabled)
Above 54°C (129°F) Open (EVAP Enabled)

EGR BVSV
Below 35°C (95°F) Closed (EGR Disabled)
Above 54°C (129°F) Open (EGR Enabled)

Engine Vacuum At Idle 450 mmHg (17.72 in.Hg, 60 kPa) or more