j338 AUDI A4 1998 B5 / 1.G AEB Engine Motronic MFI And Ignition System

24-4


11 -
Camshaft Position (CMP) sensor -G40-
12 -
Knock Sensor (KS) 1 -G61-
13 -
Knock Sensor (KS) 2 -G66-
14 -
Engine speed (RPM) sensor -G28-
(behind oil filter housing on engine cylinder
block)
15 -
Intake Air Temperature (IAT) sensor -G42-
16 -
Throttle valve control module -J338-
Including:
Throttle drive -G186-Angle sensor 1 for throttle drive -G187-Throttle Position (TP) sensor -G69-Closed Throttle Position (CTP) switch -
F60-
Pa
ge 4 of 135 Motronic Multi
port Fuel In
jection
(MFI
) and i
gnition s
ystem
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.24.1

24-60
Evaluation of display group 2 Display
group: 2


Display field:
2
Possible cause
Corrective action
less than 0.50
ms
Smaller values can only occur while driving during
deceleration
more than 1.50
ms Shift into drive range (auto. transmission)
Engine is affected by additional consumers- Move shift lever to P or N
- Illuminate load (A/C, power steering,
generator)

Poor idle (does not run on all cylinders)- Check spark plugs
- Check fuel injectors Page 24
-87


Throttle valve control module -J338 faulty- Check throttle valve control module
Page 24
-99

Display field:
4
Possible cause
Corrective action
less than 1.8
g/s
Large amount of false air between intake air duct and
Mass Air Flow (MAF) sensor - Check intake air system for leaks (false
air) Page 24
-97

larger than 4.0
g/s
Shift lever in drive range (auto. transmission)
Engine affected by additional consumers- Move shift lever to P or N
- Eliminate load (A/C, power steering,
generator)
Pa
ge 79 of 135 Motronic Multi
port Fuel In
jection
(MFI
) and i
gnition s
ystem
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.24.1