Renault F4R - Page 749

17B-5
PETROL INJECTION
Oxygen sensors: Removal - Refitting
F4R
17B
a Remove the upstream oxygen sensor (3) using the
tool (Mot. 1495-01).
REFITTING THE UPSTREAM OXYGEN
SENSOR
I - REFITTING OPERATION FOR PART
CONCERNED
a Refit the upstream oxygen sensor connector on the
catalytic converter.
a Torque tighten the upstream oxygen sensor (34
N.m) using the (Mot. 1495-01).
a Connect the upstream oxygen sensor connector.
II - FINAL OPERATION
a Refit:
-the turbocharger heat shield,
-the turbocharger heat shield bolts,
-the engine cover.
REMOVAL OF THE DOWNSTREAM
OXYGEN SENSOR
I - REMOVAL PREPARATION OPERATION
a Remove:
-the engine cover,
- the battery (see Battery : Removal - Refitting)
(80A, Battery),
- the battery tray (see Battery tray: Removal - Re-
fitting) (80A, Battery),
- the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-4) .
a Remove the clips (4) from the electric coolant pump.
a Move aside the electric water pump.
a Remove:
- the bolt (6) from the catalytic converter strut,
- the catalytic converter strut nut (7) ,
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