01-25
Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG
P1127 17535 Long Term Fuel Trim
mult., Bank1
System too Rich
1)
2
Dcy - Check Mass Air Flow (MAF) sensor -G70- Page 24
-57
- Check HO2S -G39- and O2S control Page 24
-17
- Check Oxygen Sensor (O2S) behind Three Way Catalytic
Converter (TWC) -G130- Page 24
-35
- Check fuel pressure regulator and residual fuel pressure
Page 24
-93
- Check fuel injectors Page 24
-87
- Output Diagnostic Test Mode (DTM) Page 01
-42
1) The term "mult." = multiplicative; applies to entire engine speed (RPM) and load range.
Pa
ge 38 of 57 On Board Dia
gnostic
(OBD
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.01.1
01-26
Diagnostic Trouble
Code (DTC)
Malfunction text
MIL
Corrective action
SAE
VAG
P1128 17536 Long Term Fuel Trim
mult., Bank1
System too Lean
1)
2
Dcy - Check HO2S -G39- and O2S control Page 24
-17
- Check Oxygen Sensor (O2S) behind Three Way Catalytic
Converter (TWC) -G130- Page 24
-35
- Check fuel pressure regulator and residual fuel pressure
Page 24
-93
- Check fuel injectors Page 24
-87
- Output Diagnostic Test Mode (DTM) Page 01
-42
- Check EVAP canister purge regulator valve output
Diagnostic Test Mode (DTM), page Page 01
-42
1) The term "mult." = multiplicative; applies to entire engine speed (RPM) and load range.
Pa
ge 39 of 57 On Board Dia
gnostic
(OBD
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU02.01.1
