Heated Exhaust Gas Oxygen (HEGO) sensor - removal and refitting
Note: A new sealing ring will be required on refitting.
Removal
1 Apply the handbrake, then jack up the front
of the vehicle and support it on axle stands
(see “Jacking and Vehicle Support”).
2 Disconnect the battery negative lead.
3 Unclip the wiring and disconnect the sensor wiring plug (see illustration).
17.3 Heated exhaust gas oxygen (HEGO) sensor - 1.4 CFI engine
A Sealing ring
B HEGO sensor
C Sensor shield
4 Remove the sensor heat shield, then unscrew the sensor from the exhaust downpipe, and carefully remove it complete with sealing ring.
Warning: Do not touch the tip of the HEGO sensor.
Refitting
5 Refitting is a reversal of removal, bearing in
mind the following points.
6 Clean the sensor threads, and take care not to touch the tip of the sensor during the refitting procedure.
7 Use a new sensor sealing ring.
8 Tighten the sensor to the specified torque.
9 On completion, start the engine and check for leaks between the sensor and the exhaust downpipe.
See also:
Air cleaner element renewal (Every 24 000 miles (40 000 km) or 2 years)
Carburettor models
1 Remove the screws from the top of the air
cleaner cover (see illustration).
38.1 Remove the air cleaner cover screws . . .
2 Where applicable release the spring clips
aroun ...
Crankshaft front oil seal - renewal
Note: A new gasket will be required for
refitting if the old seal housing is removed
during this procedure.
1 Remove the timing belt and the crankshaft
sprocket.
2 If an oil seal removal tool is ...
Warm-up regulator - removal and refitting
Note: Refer to the precautions at the end of
Section 1 before proceeding. New banjo
union sealing washers must be used on
refitting.
Removal
1 The warm-up regulator is only used on KJetronic
sys ...
