Throttle Sensor
- Warm engine to normal operating temperature. Stop engine and connect tachometer. Disconnect Brown connector under air cleaner on carbon canister side of engine.
- Using 2 voltmeters, connect negative lead of each voltmeter to each terminal in connector. Connect positive leads to "B" terminal of alternator. See Fig 1 .
- Start engine. Quickly decelerate engine from 3000 RPM and make sure that current flows to both terminals when engine speed is 1000-1200 RPM. If current does not flow to both terminals at specified speed, adjust throttle sensor.
- To adjust sensor, remove cap from adjusting screw. Adjust timing of current flowing to voltmeter A in Fig 1 by turning adjusting screw. Turning screw clockwise causes current to flow earlier and turning screwing counterclockwise causes current to flow later. See Fig 2 .
- After adjustment, install cap over throttle sensor adjusting screw. Remove voltmeters and reconnect Brown connector. Remove tachometer.