XJ-6 L6-4.2L (1983)
Altitude Compensator: Description and Operation
Altitude compensation prevents deterioration of exhaust emissions caused by an enriched air/fuel mixture.
Atmospheric pressure varies according to the altitude. The higher the altitude, the lower the atmospheric pressure. At an atmospheric pressure of 26 in.
Hg or below, corresponding to altitude of 3,675 ft. or higher, the altitude switch transmits an ''On'' signal to the control unit, decreasing fuel by 6% and
providing an appropriate air/fuel mixture ratio.
