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:
Wiring diagrams
Notes, tables, wire colours and key to wiring diagrams. Models up to 1987
Notes, tables, wire colours and key to wiring diagrams. Models up to 1987
Key to wiring diagrams (continued). Models up to ...
Fuel pump - testing, removal and refitting
Note: Refer to the warning at the end of
Section 1 before proceeding.
Testing
1 The fuel pump may be quite simply tested
by disconnecting the fuel inlet pipe from the
carburettor and placing its ...
Throttle cable - adjustment, removal and refitting
Adjustment
The procedure is the same as described in
Part A of this Chapter for carburettor engines,
except that the cable adjuster is situated in a
bracket alongside the throttle housing.
Remova ...
