Operation CHARM: Car repair manuals for everyone.
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California

Fig. 50 Air Injection System Operating Conditions (California):





Cold Engine:

The Air Suction Control Solenoid is on when:
1. Coolant temperature is below 74°C (165°F).
Vehicle speed is below 12.5 mph.
AND
2. Vacuum switch A is off.
AND/OR
3. Intake air temperature is below 20.5°C (69°F).

Warm Engine:

The Air Suction Control Solenoid is on when:
1. Coolant temperature is above 74°C (165°F).
Vacuum switch B is off.
Engine speed is below 3,000 rpm or engine speed above 3,000 rpm (on delay 2 seconds).
AND
2. Vacuum switch A is off.
AND/OR
3. Intake air temperature is below 65°C (149°F),
OR
Intake air temperature is above 65°C (149°F) and vehicle speed is above 12.5 mph.