I don't have access to my workshop manuals until Tuesday or Wednesday and have a couple of questions. Does the vacuum tank and system located in the right rear fender well control anything other than the exhaust bypass valves? Is the air pump located in the left rear fender well used for anything other that injecting air into the exhaust system for the cats? Thanks
Yes, the compensating throttle inside the intake plenum runs off vacuum. The air pump supplies air to the cats during the first moments after startup.
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