Idle Speed Control Valve (ISCV) - removal, cleaning and refitting

Removal
1 Disconnect the battery negative lead.

2 Disconnect the valve wiring plug (see illustration).

12.2 Idle speed control valve - 1.6 EFI engine
12.2 Idle speed control valve - 1.6 EFI engine

A Wiring plug B Securing bolts

3 Unscrew the two securing bolts, and withdraw the valve from the air cleaner housing.

Cleaning
4 Remove the valve as described earlier in this Section.

5 Immerse the valve in a container of clean petrol and allow it to soak for approximately three minutes.

6 Use a clean paint brush to clean the bore, slots and piston of the valve.

7 Using a small screwdriver, carefully move the piston up and down in the bore (do not use the slots to do this), then rinse the valve with petrol and dry it, preferably using compressed air (see illustration).

12.7 Using a screwdriver to move the idle speed control valve piston - 1.6
12.7 Using a screwdriver to move the idle speed control valve piston - 1.6 EFI engine

8 Refit the valve as described in the following paragraphs.

Refitting
9 Refitting is a reversal of removal, ensuring that the mating faces of the valve and air cleaner are clean.

10 On completion, start the engine and check that the idle speed is stable, and that there are no air leaks. Warm the engine up to normal operating temperature, then switch on all available electrical loads and check that the idle speed is maintained.

    See also:

    Fuel filler flap
    WARNINGS: Take care when refuelling to avoid spilling any residual fuel from the fuel pipe nozzle. We recommend that you wait at least 10 seconds before removing the fuel pipe nozzle to allow an ...

    Telephone setup
    Requirements for cradle connection Your phone must be fitted in a mobile phone holder before it can be used as a cradle phone with your handsfree/voice control system. You will be able to purcha ...

    Locking and unlocking
    Central locking You can only centrally lock the doors if they are all closed. Note: The driver’s door can be unlocked with the key. This needs to be used if the remote control or keyless entry is ...