LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 1972 >> Hi-Lux Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Transmission Controlled Spark >> Maintenance >> Throttle Positioner Adjustment
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Throttle Positioner Adjustment

With engine warmed up, pull off thermo-sensor connector and adjust engine idling to specified RPM. See Tune-Up Charts  . Disconnect vacuum hose from throttle positioner and set throttle positioner to "ON" position. Using throttle positioner adjusting screw, set RPM to speed specified in following chart. Reconnect vacuum hose and thermo-sensor connector.

Throttle Positioner Setting (RPM)

Engine (1) Manual Trans. (1) Auto. Trans.
3K-C 1500  
2T-C & 18R-C 1400 1400
4M 1300 1200
F 1200  
(1) Set in neutral.