Electronic Throttle Body, Renew

Removal

CAUTION: This process assumes the use of the original throttle cable. The cable setting procedure in this instance is NOT appropriate for a new cable.

1. Disconnect the battery ground lead.
2. Remove the air cleaner cover/intake assembly.





3. Disconnect the three harness connectors and the vacuum pipe from the throttle body.





4. Rotate the throttle quadrant to allow disconnection of the inner cable.

Note: Do not disturb the adjusting nut.





5. Release the throttle cable locking nut and displace the outer cable from the abutment bracket.





6. Remove coolant hoses (2), Mop up any spilt coolant and plug the hoses.





7. Release the connector from the bracket under the LH side of the assembly.





8. Remove the throttle body to induction elbow fixings (4) and pull the assembly clear. Discard the gasket and clean all traces from the induction elbow mating face. Wipe off the inlet tract to prevent the ingress of foreign matter.






9. Remove the throttle cable and intake duct brackets.

Installation





1. Assemble the throttle cable and intake duct brackets and tighten the fixings to torque.





2. Ensuring that the mating faces are clean and using a new gasket, fit the throttle assembly. Tighten the fixings (4) to torque.

3. All other aspects of the installation are a reversal of the removal procedure. However, particular attention must be paid to the following.

CAUTION: Under no circumstances may the quadrant be held clear of the throttle stop by cable tension Refit the throttle cable & ensure that there is neither tension nor slack in the cable.





4. Tighten the locknut without altering the setting or introducing twist into the cable outer.

5. Check the kickdown setting to ensure that it is within specification and reset if required, see (Installation) #6.





6. Connect Scantool, Read 'Current Powertrain Data' Display PID 120F (pedal demand).


Note: Ensure that contact with the switch does not result in switch movement.





7. Push the throttle pedal until light contact is made with the kickdown switch






8. Specified PID value = 3.66 to 3.76 volts (2F9 + or - A hex). If the value is outside these limits, proceed to step #9 (Installation). It the value is within these limits, proceed to step #13 (Installation).

9. Pull the carpet from around the kickdown switch.
10. Disconnect the kickdown switch flying lead connector (to avoid cable twist as the switch is rotated).






11. Adjust the kickdown switch to the value as defined in step #8 (Installation)
12. Reconnect the kickdown flying lead connector and verify the setting
13. Check the coolant level and correct as required