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:
Front brake disc pad check (Every 6000 miles or 6 months)
1 Place a mirror between the roadwheel and
the caliper and check the thickness of the
friction material of the disc pads (see
illustration). If the material has worn down to
the specified minimum ...
Headlamp unit - removal and refitting
1 Disconnect the battery negative lead.
2 Remove the radiator grille panel.
Models up to 1987
3 Disconnect the headlamp wiring plug(s)
see illustration).
41.3 Disconnect the headlamp wiring plu ...
Handbrake cables - renewal
1 Chock the front wheels, then fully release
the handbrake.
2 Raise and support the vehicle at the rear
with axle stands (see “Jacking and Vehicle
Support”).
Primary cable
3 Extract the spring c ...
