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:
Electric cooling fan - removal and refitting
CVH models
1 Disconnect the battery negative lead.
Unclip the wiring connector from the fan
motor then unscrew the retaining nuts and
washers. Withdraw the fan shroud and
cooling fan assembly (se ...
Steering intermediate shaft and flexible coupling - removal and refitting
Removal
1 Apply the handbrake, jack up the front of
the vehicle and support on axle stands.
2 Working in the engine compartment,
unscrew the bolt securing the intermediate
shaft to the inner colu ...
Temperature gauge sender removal and refitting
Removal
1 On SOHC models, the temperature gauge
sender is located on the front left-hand side of
the cylinder head, just in front of the inlet
manifold. On CVH models, the sender is
located on th ...
