Volkswagen Golf / Golf GTI / Jetta. Manual — part 164

01-198

Display group 6 - Basic function

Engine running at idle

Read measured value
block 6

Indicated on

display

xxxx
rpm

xxx.x

%

xxx.x

C

xx.x

%

1

2

3

4

Display zones

Specification

Evaluation

Elevation
correction factor

-50.0...20.0 %

---

Intake air temperature

-37.0...126.0

C

Page 01-

196

Engine load

12.0...26.0 %

Page 01-

201

Engine speed (idle speed)

640...720 rpm

Page 01-

188

Note on display zone 2:

The engine load at idling is given as the specification.

Note on display zone 3:

The total temperature range is given as the specification. The displayed value must be
above ambient temperature.

Measured value (data) blocks

01-199

Display group 8 - Basic functions - Brake System Vacuum Pump (automatic
transmission only)

Ignition on, engine not running

Read measured value
block 8

Indicated on

display

Text

xx.xxx

V

Text

xxx

mbar

1

2

3

4

Display zones

Specification

Evaluation

Brake servo,
absolute pressure

---

---

Brake System Vacuum
Pump -V192-

(pump ON / pump OFF)

---

---

Voltage supply for Motronic Engine
Control Module (ECM) -J220-

11.500...15.000

V

Page 01-

194

Brake pedal:

Not operated

Operated

not oper.

operated

---

---

Measured value (data) blocks

01-200

Measured value blocks, display groups 10...29 - Ignition, evaluating

Display group 10 - Ignition

Engine running at idle

Read measured value
block 10

Indicated on

display

xxxx
rpm

xxx.x

%

xxx.x

%

xx.x

BTDC

1

2

3

4

Display

zones

Specification

Evaluation

Ignition timing
angle

4.0...15.0

BTDC

---

Throttle valve angle

Angle sensor -1- for throttle
drive -G187-

0.2...4.0 %

Page 01-

202

Engine load

12.0...26.0 %

Page 01-

201

Engine speed (idle speed)

640...720 rpm

Page 01-

188

Note on display zone 2:

The engine load at idling is given as the specification.

Note on display zone 3:

Display values must be approx. 100 % when accelerator pedal is fully depressed.

Measured value (data) blocks

01-201

Evaluating display group 10, display zone 2 - Engine load

Appears on

display

Possible cause

Corrective action

Less than

specified

Lower values can only occur

when driving in overrun

---

Greater than

specified

Rough idling (not running on

all cylinders)

- Check spark connectors

Page

28-15

, Test data, spark

connectors

- Check ignition coils with power
output stage

Page 28-23

Mass Air Flow (MAF) Sensor

-G70- faulty

- Check Mass Air Flow (MAF)
Sensor -G70-

Page 24-52

Fuel injector faulty

- Check fuel injectors

Page 24-

97

Throttle Valve Control

Module -J338- sticking/faulty

- Check Throttle Valve Control
Module -J338-

Page 24-59

Electric consumers switched

on

- Switch off electric consumers

Steering wheel at full lock

- Set steering wheel to center
position

Gear selected (automatic

transmission)

- Place selector lever in P or N

Measured value (data) blocks