fuse AUDI A4 1998 B5 / 1.G AEB Engine Motronic MFI And Ignition System
Page 118 of 135
24-86
If the wiring is OK, but the LED test light does not
light up:
- Replace Engine Control Module (ECM) Page
01
-57
.
If the wiring is OK, and the signal to the fuel
pump relay is OK:
- Replace fuel pump relay -J17-.
- Reinstall fuses.
Pa
ge 118 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
Page 119 of 135
24-87
Fuel injector actuation, checking
Triggering fuel injectors via output Diagnostic
Test Mode (DTM) Page 01
-42
Required special tools and test equipment
VAG 1598/22 test box
Multimeter US 1119 (Fluke 83 or equivalent)
VAG 1527B LED voltage tester
VW 1594 connector test kit
Wiring diagram
Test requirements
Fuse for fuel injectors OK
Engine speed (RPM) sensor OK
Fuel pump relay OK
Pa
ge 119 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