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:
Radiator - removal and refitting
Removal
1 Disconnect the battery negative lead.
2 Drain the cooling system.
3 If not already done, disconnect the bottom
hose from the radiator.
4 Disconnect the top hose and the expansion
tank ...
Rear anti-roll bar (Saloon and Estate models) - removal and
refitting
Removal
1 Slacken the left-hand roadwheel bolts, raise
and support the rear of the car on stands (see
“Jacking and Vehicle Support”). Remove the
roadwheel.
2 Lever the shackles from the right and ...
Accelerator pedal - removal and refitting
The procedure is the same as described in
Part A of this Chapter for carburettor models. ...
