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:
Rear wheel bearings - renewal
Saloon, Hatchback and Estate
models
With rear drum brakes
Note: There are two types of bolts used to
secure the rear hub carrier to the lower arm
(see illustration).
14.1a Alternative types of ...
Oil pump - dismantling, inspection and reassembly
1.8 litre (R2A type)
1 If oil pump wear is suspected, check the
cost and availability of new parts and the cost
of a new pump. Examine the pump as
described in this Section and then decide
whethe ...
Fuses and relays - location and renewal
Location
1 The main fuses and relays are located in a
box in the engine compartment on the righthand
side of the bulkhead. The circuits
protected are identified by symbols on the
underside of the ...
