Throttle Full Open Switch: Service and Repair

Removing And Installing Throttle Switch

Work sequence

- Remove throttle body





- Remove switch 4 following numerical sequence of components 1 through 5
- Install components in reverse order
- If needed, perform basic adjustment as follows

Basic Adjustment Of The Throttle Valve

Note: Stop screw is set at factory and should not be moved. If screw position has been altered, check basic adjustment as follows

Work sequence





- Turn adjusting screw (arrow) out until gap exists between stop and screw
- Turn screw in until it just touches stop

Note: In order to determine exact point of contact with screw stop, place a thin piece of paper between screw and stop. Slide paper and turn screw at same time until screw pinches paper.

- Turn screw clockwise additional 1/2 turn
- Check idle speed and CO; adjust if necessary