Idle speed control valve - removal and refitting
Note: A new gasket must be used when refitting the valve.
2.0 litre SOHC models
1 Disconnect the battery negative lead.
2 Disconnect the idle speed control valve wiring plug by releasing the retaining clip and pulling on the plug, not the wiring (see illustration).
13.2 Disconnecting the idle speed control valve wiring plug
3 Unscrew the two retaining nuts and withdraw the valve from the inlet manifold (see illustration). Recover the gasket.
13.3 Unscrewing an idle speed control valve retaining nut
4 Clean the valve and manifold mating faces before refitting, taking care not to allow dirt to enter the manifold.
5 Refitting is a reversal of removal, using a new gasket.
6 On completion, start the engine and check that the idle speed is stable if not, check for air leaks around the valve. Switch on all available electrical loads and check that the idle speed is maintained - if not, suspect a faulty valve.
2.0 litre DOHC models
7 Disconnect the battery negative lead.
8 Loosen the securing clip, and disconnect the air inlet hose from the throttle body.
9 Unscrew the securing nut, and release the air inlet tube from the bracket on the engine compartment front panel.
10 Disconnect the wiring plug from the idle speed control valve.
11 Release the air cleaner lid securing clips then remove the air inlet tube, plenum chamber, and air cleaner lid as an assembly, disconnecting the breather hose from the air inlet tube.
12 Unscrew the two securing bolts, and withdraw the valve from the air inlet tube.
Recover the gasket (see illustration).
13.12 Withdrawing the idle speed control valve and gasket
13 Clean the valve and air inlet tube mating faces before refitting, taking care not to allow dirt to enter the air inlet tube.
14 Refitting is a reversal of removal, using a new gasket.
15 On completion, start the engine and check that the idle speed is stable if not, check for air leaks around the valve. Switch on all available electrical loads, and check that the idle speed is maintained - if not, suspect a faulty valve.
Mixture adjustment potentiometer (2.0 litre DOHC) - removal and refitting
1 The potentiometer is located at the rear right-hand side of the engine compartment, behind the MAP sensor.
2 Disconnect the battery negative lead.
3 Remove the screw, then withdraw the potentiometer and disconnect the wiring plug.
4 Refitting is a reversal of removal.
See also:
Ignition system - testing
Note: Refer to the precautions given in
Section 1 before proceeding.
Contact breaker ignition system
1 By far the majority of breakdown and
running troubles are caused by faults in the
ignition s ...
Fuses, relays and circuit breakers - general information
Pre-1986 models
1 The fuses and most of the relays are
located in a plastic box attached to the
bulkhead on the driver’s side of the engine
compartment.
2 The fuses are numbered to identify the
...
Manual gearbox oil level check (Every 12 000 miles (20 000 km) or 12 months)
1 Place the vehicle over a pit, or raise and
support it at front and rear. The vehicle must
be level for an accurate check.
2 If the gearbox is hot after a run, allow it to
cool for a few minutes. ...