steering AUDI A4 1995 B5 / 1.G APB Engine Motronic Multiport Fuel Injection System Servising Workshop Manual

24-26

Important Note:
After installing new engine control module, carry
out the following operations:
- Check DTC memory and erase if necessary
Page 01
-15
.
- Perform adaptation of Throttle Valve Control
Module -J338 Page 24
-146
.
- Observe notes for coding new engine control
module Page 01
-93
.
- On vehicles with cruise control (recognizable at
steering column switch), activate cruise control
function in the engine control module.

Repair Manual, Electrical Equipment, Repair
Group 01

- On vehicles with automatic transmission carry
out adaptation for Kick-Down switch Page 24
-
166
.
- Generate readiness code Page 01
-105
.
- Perform adaptation of immobilizer to engine
control module

Pa
ge 29 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, servicin
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
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24-70
Reading Display Group 002 Display field
3
Possible cause of malfunction
Corrective action
Less than 2.0
ms
Lower values can only occur when vehicle is on fuel-
shut off (overrun)
More than 4.0
ms Load on engine due to ancillaries- Eliminate load (air conditioner, power
steering, alternator)

Rough idle (engine not running on all cylinders)- Check spark plugs
- Check fuel injectors Page 24
-39


Throttle Valve Control Module -J338 faulty- Check Throttle Valve Control Module
Page 24
-139

Pa
ge 81 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, servicin
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1

24-71
Reading Display Group 002 Display field
4
Possible cause of malfunction
Corrective action
Less than 3.0
g/s
Large quantity of un-metered air between intake manifold
and Mass Air Flow (MAF) sensor
Voltage supply to Mass Air Flow (MAF) sensor or wiring to
Engine Control Module (ECM) - Check intake system for leaks (un-
metered air) Page 24
-76

- Check voltage supply and wiring Page 24
-72

More than 4.5
g/s
Load on engine due to accessories- Eliminate load (A/C, power steering,
generator)

Voltage supply to Mass Air Flow (MAF) sensor or wiring to
Engine Control Module (ECM) - Check voltage supply and wiring Page
24
-72

Pa
ge 82 of 90 Motronic Multi
port Fuel In
jection
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1