chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Coolant Temperature Sensor/Switch (For Computer) > < Ignition Control Module|Testing and Inspection
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Altitude Switch: Description and Operation

    The altitude switch provides a voltage to the ECM to allow ambient pressure compensation of the controlled functions. The altitude switch directly
controls the air/fuel solenoid which then changes the air/fuel range of the carburetor during high altitude conditions.

Coolant Temperature Sensor/Switch (For Computer) > < Ignition Control Module|Testing and Inspection