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:
Intensive maintenance
If, from the time the vehicle is new, the
routine maintenance schedule is followed
closely and frequent checks are made of fluid
levels and high wear items, as suggested
throughout this manual, th ...
Weber 2V carburettor automatic choke unit - adjustment
XR3 models
1 Remove the air cleaner as described in
Section 2.
2 Disconnect the electrical lead to the
automatic choke.
3 Unscrew and remove the three screws
which hold the automatic choke housi ...
Fuel and exhaust systems - carburettor
General information and precautions
General information
The fuel system on carburettor models
may comprise a fuel tank, a fuel pump, a fuel
pressure regulator and/or vapour separator, a
downdraug ...
