Jetta L4-1.8L Turbo (AWP) (2004)
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Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
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Voltage supply of oxygen sensor heater via Fuel Pump (FP) Relay -J17-
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Check oxygen sensor heater for Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC)
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Check Oxygen Sensor (O2S) and oxygen sensor control before Three Way Catalytic Converter (TWC)
10
4-pin harness connector
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black for Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) Heater -Z19-
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At vehicle underside
11
Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- bank 1*, 50 Nm
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Component location: In rear catalytic converter
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Only use "G 052 112 A3" to grease thread; do not let "G 052 112 A3" get onto slit of oxygen sensor
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Voltage supply of oxygen sensor heater via Fuel Pump (FP) Relay -J17-
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Check oxygen sensor heater for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC)
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Check Oxygen Sensor (O2S) and oxygen sensor control behind Three Way Catalytic Converter (TWC)
12
Bracket
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for recirculating valve for turbocharger
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for Secondary Air Injection (AIR) solenoid valve
13
Bracket
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for engine speed (RPM) sensor
14
O-ring
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Replace if damaged
15
Engine Speed (RPM) Sensor -G28-*
16
3-pin harness connector
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gray
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for engine speed (RPM) sensor
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Component location, engine compartment overview
17
20 Nm
18
45 Nm
19
Brace
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between intake manifold and engine block
20
Charge Air Pressure Sensor -G31-*
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4-pin connector
21
Intake manifold
22
Seal
23
To Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-
24
Throttle Valve Control Module -J338-*
25
Return line
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secure with spring type clamps
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Check for secure fitting
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to fuel delivery unit in fuel tank
26
Supply line
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secure with spring type clamps
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from fuel filter
27
Fuel rail with fuel injectors
28
Intake Air Temperature (IAT) Sensor -G42-*
29
to tube between turbocharger and charge air cooler
30
to tube between turbocharger and charge air cooler
31
To turbocharger
32
to crankshaft housing ventilation
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Cylinder head cover
33
to the crankshaft housing ventilation
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Oil filter bracket
34
Engine Coolant Temperature (ECT) Sensor -G62-*
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for Engine Control Module (ECM)
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with Engine Coolant Temperature (ECT) Sensor -G2-
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If necessary, release pressure in cooling system before removing
35
Connector
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Black, 4-pin
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for Engine Coolant Temperature (ECT) Sensor -G62-
36
Retaining clip
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Check for secure fitting
37
To Recirculating valve for turbocharger -N249-
Vehicles with engine code AWD:
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Overview plan of exhaust turbocharging system
Vehicles with engine code AWP, AWW: