17B-4
PETROL INJECTION
Oxygen sensors: Removal - Refitting
K4M
17B
REMOVAL
I - REMOVAL PREPARATION OPERATION
1 - Upstream oxygen sensor
a Remove:
-the air resonator (see 12A, Fuel mixture, Air res-
onator: Removal - Refitting, page 12A-2) ,
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-6) .
2 - Downstream oxygen sensor
a Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
II - REMOVAL OPERATION
1 - Upstream oxygen sensor
a Disconnect the upstream oxygen sensor connector
(1) .
a Unclip the upstream oxygen sensor wiring.
a Remove the upstream oxygen sensor (2) using the.
Tightening torquesm
upstream oxygen sen-
sor
45 N.m
downstream oxygen
sensor
45 N.m
WARNING
Do not use any product designed to improve the
electrical contact in the injection computer and oxy-
gen sensor connectors or on the bodies of the oxy-
gen sensors.
Failure to respect this advice causes the oxygen
sensor to malfunction and results in failure to com-
ply with the emission control standard.
WARNING
If the connections are corroded, repair the wiring
(see Wiring: Precautions for repair) (Technical
Note 6015A, 88A, Wiring).
116635
To Next Page
Loading...
