Volkswagen Golf / Golf GTI / Jetta. Manual — part 159

01-178

Work

step/

Diagnosis

Function/group

Test

prerequisites

Display

zone 1

Display

zone 2

Display

zone 3

Display

zone 4

9 Oxygen

Sensor

(O2S)

control

status

08/30

Idle speed

Before

Three

Way

Catalytic

Converter

(TWC)

After

Three

Way

Catalytic

Converter

(TWC)

No

display

No

display

Specification:

xxx

111

---

---

Readiness code

01-179

Work steps 10 to 11:

Work step/

diagnosis

Function/group

Test

prerequisites

Display

zone 1

Display

zone 2

Display

zone 3

10

Oxygen

Sensor

(O2S) after

Three Way

Catalytic

Converter

(TWC)

(Oxygen

Sensor

(O2S)

aging)

04/43

Brakes

operated

Accelerator

in wide
openthrottle
position.

Engine

speed

Three Way

Catalytic

Converter

(TWC)

temperature

Oxygen

Sensor

(O2S)

voltage,
Oxygen

Sensor

(O2S) after
Three Way

Catalytic

Converter

(TWC)

Specification:

Approx.

2300 rpm

Greater than

380 C

0.100...0.900

V

11

Oxygen

Sensor

(O2S) after

Three Way

Catalytic

Converter

(TWC)

(operational

readiness)

04/36

Idle speed

Oxygen

Sensor

(O2S)

voltage,

Oxygen

Sensor

(O2S) after

Three Way

Catalytic

Converter

(TWC)

Result

No display

Specification: 0.100...0.900

V

B1 P2 OK.

---

Readiness code

01-180

Work steps 12 to 13:

Work step/

diagnosis

Function/group

Test

prerequisites

Display

zone 1

Display

zone 2

Display

zone 3

12

Three

Way

Catalytic

Converter

(TWC)

04/46

Brakes

operated

Accelerator

in wide
openthrottle
position.

Engine

speed

Three Way

Catalytic

Converter

(TWC)

temperature

Three Way

Catalytic

Converter

(TWC)

conversion

rate

Specification: Approx.

2300

rpm

Greater than

380 C

0.00...0.99

13

Fuel

supply

system

(idle

speed)

04/216

Idle speed

Engine

speed

Oxygen

Sensor

(O2S)

before

Three Way

Catalytic

Converter

(TWC)

lower part

load

Oxygen

Sensor

(O2S)

before

Three Way

Catalytic

Converter

(TWC)

idle speed

Specification:

---

---

---

xxxx1100

Readiness code

01-181

Work steps 14 to 16:

Work step/

diagnosis

Function/group

Test

prerequisites

Display

zone 1

Display

zone 2

Display

zone 3

14

Evaporative

Emission

(EVAP)

Canister Purge

RegulatorValve

-N80-

(Tank

ventilation

system)

04/70

Idle speed

Evaporative

Emissions

(EVAP)

Canister

regulator

valve 1

duty cycle

TBV

quality

No

display

Specification:

---

---

---

15 Secondary air

system

04/77

Idle speed

Idle speed

Air

mass

drawn

in

Air mass,

secondary

air

system

Specification:

640...720

rpm

---

---

16

Read

readiness

code

15/---

Idle speed

---

---

---

1)

TBV stands for Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-.

Readiness code