A4 Quattro Sedan L4-1.8L Turbo (AWM) (2001)
Fuel Injector: Locations
Component Locations, Overview
NOTE: Component location without illustration:
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Leak Detection Pump (LDP) - V144-
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Below rear left wheelhousing liner
1
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Evaporative Emission (EVAP) canister purge regulator valve -N80-
2
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Heated Oxygen Sensor (HO2S) -G39- before catalytic converter, 55 Nm
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Constant oxygen sensor
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Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC)
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Check oxygen sensor aging of oxygen sensor before catalytic converter
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Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC)
3
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Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) - G130-, 55 Nm
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Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC)
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Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC)
4
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Combination - valve for secondary air injection (AIR)
5
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Engine - Coolant Temperature (ECT) sensor -G62-
6
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Fuel pressure regulator