Civic CVCC L4-1488cc 1500 EM1 (1982)
Air Jet Controller: Description and Operation
Fig.158 - Air Jet Controller
The air jet controller, Fig. 158, is an atmospheric pressure sensing device which controls the amount of air flow into the slow air jet and main air
jet of the auxiliary carburetor, and the second slow air jet of the main carburetor. As the ambient pressure is reduced by increasing altitude the
bellows expands to open the air jets, increasing air flow to maintain optimum air/fuel ratio.