Altitude Switch
At a given altitude, the switch will close and energize a solenoid valve and idle-up solenoid valve. This will signal ECM of high altitude condition and increase air flow to carburetor idle and off-idle circuits.
At a given altitude, the switch will close and energize a solenoid valve and idle-up solenoid valve. This will signal ECM of high altitude condition and increase air flow to carburetor idle and off-idle circuits.