Removing
1. Release pressure from the supply system. Disconnect the negative battery cable. Drain the coolant. Disconnect all necessary hoses, wires and fittings.
2. Mark the position of the throttle position sensor and remove it.
13.3 Components of the throttle body
1. Damper cover; 2. O-ring; 3. Spring; 4. Damper; 5. O-rings (2); 6. Fuel pressure regulator; 7. Mixer; 8. Hose; 9. O-ring; 10. Throttle body; 11. Throttle position sensor; 12. Connection; 13. Bracket; 14. Return spring; 15. Throttle lever 16 Ring; 17. Shutdown lever; 18. Low gear lever; 19. Adjusting screw; 20. Spring; 21. O-rings (2); 22. Injectors; 23. Bushings (2); 24. O-rings (2); 25. Fastening; 26. Vacuum diaphragm; 27. Spring; 28. Return spring
3. Unscrew the mounting screws and remove the injector mounts (13.3).
4. Get injectors from the case. Remove injector gaskets and other elements.
Bulkhead
5. Clean all parts except vacuum diaphragm and solvent throttle position sensor. Check that the vacuum and fuel channels are not clogged.
Installation
13.6a Check the correct installation of the injector O-ring
1. Top side; 2. O-ring
13.6b When installing the throttle position sensor, check that the protrusion "IN" hit the groove "A"
13.6v Check the resistance between terminals 1 and 2 or 2 and 3 of the throttle position sensor connector when the throttle is opened
6. Installation is carried out in the reverse order of removal (13.6a, 13.6b and 13.6c).