Signs of a throttle that is not fully closing can be increased idling speed and fuel consumption, and signs of a throttle that is not fully opening - the engine does not develop full power, insufficient engine throttle response, jerks and dips in engine operation when the car is moving. Throttle valve fouling from blow-by deposits usually results in erratic idling. The throttle valve drive is electric, it is controlled by the electronic unit of the engine control system. To repair the electric drive, qualified personnel and special equipment are required. If these malfunctions occur, first try flushing the throttle valve (e.g. thinner or special aerosol carburettor cleaner). If this does not lead to a positive result, replace the throttle assembly.
You will need a TORX T30 key.
1. Disconnect the wire from the terminal «minus» battery.
2. Remove the air filter (see «
Removal and installation of the air filter»).
3. Turn out four screws and remove throttle knot.
4. Disconnect the harness connector from the throttle position sensor.
5. Remove the rubber seal.
Note. With the throttle assembly removed, cover the intake pipe opening with a piece of rag.
6. Install the throttle assembly in the reverse order of removal.
Note. Pay attention to the marking of the throttle assembly. Purchase a throttle assembly with the same marking.
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