Replacing Throttle Return Spring - Supercharged Engines

1. Remove the intercooler induction elbow retaining bolts and clip.

2. Remove the elbow, hose and sealing ring.

3. Disconnect the cruise control vacuum hose and the return spring and remove the retaining nut and the actuator.

4. Disconnect the inner accelerator cable from the throttle assembly.

5. Loosen and remove the three Torx head screws that retain the throttle assembly cap to the pedestal and remove the cap sub-assembly.

6. Unhook the throttle torsion spring (Illustration 9) from the throttle shaft actuator and then remove the spring and the sleeve from the shaft.

7. Remove the sleeve from the spring and discard the spring.

8. Insert the sleeve into the replacement spring. Install the sleeve and spring on the throttle shaft and hook the spring on to the actuator.

Note:
Tension (pre-load) the throttle return spring by rotating the straight extension one full turn counterclockwise until it can be installed in the same position as the original spring.

9. Carefully reinstall the cap to the throttle assembly noting the lever location. Install and tighten the screws.

10. Reconnect the accelerator cable to the throttle assembly.

11. Reinstall the speed control actuator on the mounting bracket with the retaining nut.

12. Reconnect the vacuum hose, linkage pin and the return spring.

13. Reinstall the sealing ring on the induction elbow and then reinstall the elbow on the throttle assembly with the retaining bolts and clip.

14. Check the operation of the throttle assembly.

15. Remove fender covers, reconnect the battery, reinstall the battery cover, and close the lid of the luggage compartment. Reset the vehicle clock and customer preferences.

16. Using the WDS, perform the oxygen sensors orientation test. (Select set-up and configuration, engine and transmission, oxygen sensor orientation.)

17. Using the WDS, perform the throttle potentiometer adaptation test.

Note:
During the throttle pot adaptation test portion of the engine set-up procedure, the WDS will ask if a new throttle position sensor has been installed. Answer this question with YES even though the existing sensor is being reused. This action will allow the WDS to reset a larger set of parameters.

18. Check for the presence of any erroneous diagnostic trouble codes (DTCs). If DTCs are present, they should be recorded, and then cleared.