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
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
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:
Load apportioning valve (anti-lock braking system) - removal
and refitting
Note: Before starting work, refer to the
warning at the beginning of Section 3
concerning the dangers of hydraulic fluid.
Removal
1 Raise the car on a hoist or drive the rear of
the car up on ram ...
Cylinder head - inspection and renovation
Note: On engines fitted with hardened valve
seats for use with unleaded petrol, valve and
valve seat grinding and recutting cannot be
carried out without the use of specialist
equipment. Consult a ...
Master cylinder (conventional braking system) - removal, overhaul and
refitting
Note: Before commencing overhaul obtain a
repair kit containing new pistons and seals.
Caution: Refer to the
precautions in Section 1.
Removal
1 Depress the brake pedal several times to
dissipat ...