Turbo
THROTTLE BODY REMOVAL1. Lower the level of the engines coolant to below the intake manifold, by draining a partial amount into a clean container.
Throttle Body Removal:
2. Installation procedures are the reverse of the removal procedures.
Throttle Body Gasket:
NOTE: When installing the new gasket, be sure its projections are facing upward.
3. Refill the engine's coolant to the proper level.
THROTTLE BODY DISASSEMBLY
Throttle Body Disassembly For Turbo Models:
CAUTION:
a. Do NOT remove the throttle valve.
b. When loosening a Phillips screw which has been tightened firmly, be sure to use a screwdriver that is an exact fit.
c. Be careful while removing the Throttle Position Sensor and the Idle Speed Control Servo screws. They have been coated with an adhesive.
INSTALLATION OF THE TPS TO THE THROTTLE BODY
Positioning The TPS:
1. Set the TPS to the throttle body at a 90~ angle.
Adjusting The TPS:
2. Turn the TPS 90~ counterclockwise to set it, then lightly tighten the screws.
Rechecking The TPS:
3. Connect an ohmmeter to terminal # 1 and terminal # 3 of the TPS connector.
4. Verify that the resistance changes smoothly as the throttle valve is opened and closed slowly.
5. Connect the ohmmeter to terminal # 3 and terminal # 4 of the TPS connector.
6. Verify that the resistance changes smoothly as the throttle valve is opened and closed slowly.
7. Check for continuity between terminals # 2 and # 1,
^ While the throttle valve is fully closed - continuity
^ While the throttle valve is fully opened - no continuity
8. If there is not continuity with the throttle valve fully closed, turn the TPS in a clockwise direction and then recheck.
If the TPS does not meet specifications, remove and replace the Idle Position Switch.