Audi AMB - Page 5

P0135 16519
Sensor 1
 C
heck oxygen sensor heater for
oxygen sensors before Three Way
Catalytic Converter (TWC). See
OXYGEN SENSOR (O2S)
HEATER -Z19- BEFORE
CATALYTIC CONVERTER,
CHECKING .
P0136 16520
O2 Sensor Circuit, Bank 1 Sensor 2
 C
heck oxygen sensor heater for
Oxygen Sensors (O2S) behind
Three Way Catalytic Converter
(TWC). See OXYGEN SENSOR
(O2S) HEATER 1 -Z29-
BEHIND
CATALYTIC CONVERTER,
CHECKING .
 C
heck Oxygen Sensor (O2S) and
oxygen sensor control behind Three
Way Catalytic Converter (TWC).
S
ee OXYGEN SENSORS AND
OXYGEN SENSOR
REGULATION BEHIND
CATALYTIC CONVERTER,
CHECKING .
P0137 16521
O2 Sensor Circuit Low Voltage, Bank 1
S
ensor 2
P0138 16522
O2 Sensor Circuit High Voltage, Bank 1
Sensor 2
P0139 16523
O2 Sensor Circuit Slow Response, Bank
1 Sensor 2
P0140 16524
O2 Sensor Circuit No Activity Detected,
Bank 1 Sensor 2
P0141 16525
O2 Sensor Heater Circuit, Bank 1
S
ensor 2
 C
heck oxygen sensor heater for
Oxygen Sensors (O2S) behind
Three Way Catalytic Converter
(TWC). See OXYGEN SENSOR
(O2S) HEATER 1 -Z29-
BEHIND
CATALYTIC CONVERTER,
CHECKING .
P0171 16555
System Too Lean, Bank 1
 C
heck fuel pressure regulator and
residual pressure. See SYSTEM
PRESSURE AND RESIDUAL
PRESSURE, CHECKING .
 C
heck fuel injectors. See FUEL
INJECTORS, CHECKING .
 C
heck intake air system for leaks
(false air). See INTAKE
SYSTEM, CHECKING FOR
LEAKS (FALSE AIR) .
 C
heck Fuel Pump (FP). See FUEL
PUMP (FP), ELECTRICAL
TESTING for FWD and FUEL
PUMP (FP), ELECTRICAL
TESTING for AWD.
2005 Audi A4 Quattro
DTC INDEX DTC Index - 1.8L (AMB Engine)
11:32:48 PM Page 3
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