Carburetor cable and gas pedal cable (VW Golf 2)

VW cars with automatic transmission have a system that makes it possible to automatically downshift during acceleration. For example, when driving in third gear, there is a need to overtake. In most cases, just opening the throttle all the way does not help. The driver of a car with a manual transmission has the option of downshifting when achieving significantly greater acceleration.

The above-mentioned system was designed to provide this capability to the driver of a car with an automatic transmission. Its main elements are the gas pedal cable between the gas pedal and the gearshift lever on the gearbox and a second cable, the "carburetor cable", between the gearbox and the throttle lever. During normal driving, the driver, by pressing the gas pedal, opens the carburetor throttle from the closed position to the full open position. When pressing the gas pedal, resistance is felt. The carburetor throttle is fully open. When pressing the gas pedal harder, the resistance of the gearshift lever spring on the gearbox increases and causes the gear to be changed to a lower one, which allows better use of the engine power reserve. As a result, better dynamics are achieved during acceleration.

Cable adjustment - carburetor 2E2

1. Start the engine and warm it up to operating temperature and until it reaches normal idle speed. This will ensure that the throttle is in the normal position required for adjustment.

2. With the gear selector lever in position P, loosen the gas pedal cable adjusting nut and disconnect the cable from the gearbox (figure 6.25).





3. Remove the air filter assembly.

4. Loosen nut 4, which secures the carburetor cable to the bracket on the carburetor (figure 3.30).



5. Turn the choke lever 2 so that the carburetor adjusting bolt does not touch it, then secure it in this position, supporting it with a screwdriver.


6. Remove and disconnect the low pressure pipes from the four-output servomotor 17 (figure 3.21).



7. Connect the low pressure pump to the lower connection (A) on the servomotor. Connections B and C must be open (figure 3.21).

8. Using the pump, create a reduced pressure so that the servomotor pusher remains in the overload position and there is a gap between the adjusting bolt 3 and the servomotor pusher 5. Pull the metal throttle cable guard away from the carburetor to eliminate the gap, while simultaneously leaving the throttle closed and setting the gear lever resting on the overload limiter. Tighten nut 4 of the carburetor cable clamp so that it fits with the bracket and is not tense, then tighten the safety lock nut 5.

9. Reinstall the accelerator pedal cable, then have an assistant press the accelerator pedal to the downshift limiter. Turn the accelerator pedal cable adjusting nut until the transmission control lever aligns with the downshift limiter, then tighten the lock nut.

10. To check the correct adjustment, the carburetor servo motor must be in the overload position, and the control lever at the gearbox must be connected to the overload limiter. Press the acceleration pedal to the point of full throttle opening (before selecting a lower gear), then check whether the carburetor throttle lever rests against the full opening limiter. The input spring 2 should not be tensioned (Fig. 6.25).

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11. Then press the acceleration pedal to the full throttle position, to the downshift selection position, and then check whether the control lever is at the downshift selection limiter and whether the spring of passage 2 is compressed by 8 mm.

12. Install the air filter.