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6.14. Throttle


Four-cylinder engines

1. Vacuum hoses
2. Laying
3. A hose of the system catching fuel vapors
4. Casing of a butterfly valve
5. Wire of the sensor of provision of a butterfly valve
6. Wire
7. The pipe connecting a throttle to the air filter
 8. Roundabout hose of cooling liquid
9. Air hose
10. Roundabout hose of cooling liquid
11. Rope of a butterfly valve
12. Accelerator rope
13. A hose of the system catching fuel vapors
14. Temperature sensor of system of recirculation of final gases.

Functioning of vacuum ports of a throttle – 4-cylinder models
Name of port
Idling
Other modes
Р
there is no vacuum
vacuum
Е
there is no vacuum
vacuum
R
there is no vacuum
there is no vacuum

Check
PERFORMANCE ORDER
1. Examine the lever mechanism, it has to function smoothly and not jam.
2. Start the engine, in turn disconnect vacuum hoses from a throttle. Check whether there is a vacuum idling and at higher turns. Compare results of check to data of the table Functioning of Vacuum Ports of a Throttle – 4-cylinder models.
3. Remove an airintaking pipe and check a throttle for existence of a deposit and dirt. If necessary wash out a throttle special solution for cleaning of carburetors.

Replacement

PERFORMANCE ORDER
1. Disconnect a wire of the minus plug of the accumulator.
2. Remove the airintaking pipe connecting the throttle case to the air filter.
3. Disconnect an accelerator rope from the lever of a butterfly valve.
4. Disconnect hoses and wires from a throttle casing.
5. Disconnect a wire from the sensor of provision of a butterfly valve.
6. Unscrew assembly bolts of a throttle.
7. Disconnect a throttle from an inlet collector.
8. Installation is carried out upside-down removals.