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:
Bulbs (exterior lamps) - renewal
Headlamp
1 From within the engine compartment pull
the multi-plug from the rear of the headlamp.
2 Remove the rubber gaiter and rotate the
bulb securing clip or release the spring clip
arms accor ...
Timing belt - removal, refitting and adjustment
Removal
Note: From April 1988 (build code JG) a
modified timing belt tensioner incorporating a
larger diameter tensioner roller was
introduced, and from October 1988 an
improved timing belt was u ...
Exhaust system - inspection, removal and refitting
Inspection
1 The exhaust system should be examined for
leaks, damage, and security at regular
intervals. To do this, apply the handbrake, then
start the engine and allow it to idle. Lie down on
e ...
