LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 1988 >> 4Runner Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Mixture Control System >> Description
September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Mixture Control System: Description

This system controls emissions of HC and CO during sudden deceleration. This is accomplished through a Mixture Control (MC) valve, located in air cleaner. MC valve directs fresh air into intake manifold when sudden deceleration (closed throttle) occurs.