Service & Repair Manual

01-34
DTC DTC text Corrective action
SAE VAG
P1136 17544 Bank 1, mixture
adaptation (add.)
System too lean
1)
- Road test vehicle (fuel in oil).
- Check fuel system pressure Page 24-30
P1137 17545 Bank 1, mixture
adaptation (add.)
System too rich
1)
- Check Mass Air Flow (MAF) sensor Page 24-56
- Check oxygen sensor before catalytic converter Page 24-76
P1138 17546 Bank 2, mixture
adaptation (add.)
System too lean
1)
- Check oxygen sensor behind catalytic converter Page 24-97
P1139 17547 Bank 2, mixture
adaptation (add.)
System too rich
1)
- Check Evaporative Emission (EVAP) Canister Purge Regulator Valve Page
24-128
P1140 17548 Bank 2, sensor 2
Internal resistance too
large
1)
- Next check signal wires for contact resistance => page Page 24-114 ; if
there are no contact resistances: Replace oxygen sensor
1)
For these malfunctions, ECM does not switch on the Malfunction Indicator Lamp (MIL) unless malfunction is recognized
again after another engine start. Meaning of Malfunction Indicator Lamp (MIL) Page 01-3 .
Note:
add = additive, means that malfunction is only valid at closed throttle (idle).
Pa
g
e 25 of 52Check DTC Memor
y
(
function 02
)
and Erase DTC Memor
y
(
function 05
)
11/23/2002htt
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