Volkswagen Golf / Golf GTI / Jetta. Manual — part 188

Checking

Page

24-93

17 - Connector

Black, 4-

pin

Terminals

3 and 4
are gold
plated

For

Oxygen
Sensor
(O2S)
Behind
Three
Way
Catalytic
Converter
(TWC) -
G130-
and
Oxygen
Sensor
(O2S)
Heater 1
-Z29-

Component

location:
Right on
underside
of vehicle

Fuel injection system, servicing

24-17

18

-

Oxygen
Sensor
(O2S)
Behind
Three
Way
Catalytic
Converter
(TWC) -
G130-*,
50 Nm

Component

location: In
rear of
Three Way
Catalytic
Converter

Remove

and
install
with ring
wrench
3337

Grease

only
threads
with G 052
112 A3 hot
bolt paste
(anti-seize
compound).
Grease
must not
get into
slots on
sensor
body

If seal

is
leaking,
replace
seal.

Oxygen

Sensor
(O2S)
heating
voltage

Fuel injection system, servicing

supply
via fuel
pump
relay

Check

Oxygen
Sensor
(O2S)
heating
for
Oxygen
Sensor
(O2S)
Behind
Three
Way
Catalytic
Converter
(TWC) -
G130-

Page 24-
45

Check

Oxygen
Sensor
(O2S)
and
Oxygen
Sensor
control
after
Three
Way
Catalytic
Converter
(TWC)

Page 24-
140

Check

aging of
Oxygen
Sensor
(O2S)
Behind
Three
Way
Catalytic
Converter
(TWC) -
G130-

Page 24-

Fuel injection system, servicing

154

When

replacing,
erase
learned
values
and
adapt
Motronic
Engine
Control
Module
(ECM) -
J220- to
Throttle
Valve
Control
Module -
J338-

Page 24-
182

Fuel injection system, servicing