Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLKSWAGEN2003PASSAT SEDAN (3B3) V6-2.8L (ATQ)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULELOCATIONSFUEL INJECTION COMPONENT LOCATIONS OVERVIEW
2003 Volkswagen Passat Sedan (3B3) V6-2.8L (ATQ)
Fuel Injection Component Locations Overview
2003 Volkswagen Passat Sedan (3B3) V6-2.8L (ATQ)SECTION Fuel Injection Component Locations Overview
Fuel injection, servicing
Component locations, overview
NOTE:
The overview of component locations shows the following components:
- EPC indicator lamp for electronic gas activation
- Brake light switch -F- and brake pedal switch -F47-
- Throttle Position (TP) sensor -G79- and sensor 2 for accelerator pedal position -G185-
1 - 4-pin harness connector
- Green
- For Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-, bank 1 and oxygen sensor heater -Z29-, cylinder bank 1
2 - 4-pin harness connector
- Brown
- For Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131-, bank 2 and heater for oxygen sensor -Z30-, cylinder bank 2
3 - 4-pin harness connector
- Black
- for Heated Oxygen Sensor (HO2S) -G39-, bank 1 before Three Way Catalytic Converter (TWC) and oxygen sensor heater -Z19-, cylinder bank 1
4 - 3-way connector
- Brown
- for Knock Sensor (KS) 1 -G61-, cylinder bank 1
5 - Engine Coolant Temperature (ECT) sensor -G62-
6 - Secondary Air Injection (AIR) solenoid valve -N112-
- Secondary Air Injection system:
7 - Intake Air Temperature (IAT) sensor -G42-
8 - Intake manifold change-over valve -N156-
9 - Throttle Valve Control Module -J338-
10 - 4-pin harness connector
- Black
- for Heated Oxygen Sensor (HO2S) 2 -G108-, bank 2 before catalytic converter and oxygen sensor heater -Z28-, cylinder bank 2
11 - 3-way connector
- Brown
- For Knock Sensor (KS) 2 -G66-, cylinder bank 2
12 - 3-way connector
- Gray
- For Engine Speed (RPM) sensor -G28-
13 - Engine Control Module (ECM)
(control module for Motronic -J220-)
- Installation location: in protective housing, radiator tank on left
14 - Fuel pressure regulator
15 - Camshaft Position (CMP) sensor 2 -G163-
- Engine bank 2
16 - Heated Oxygen Sensor (HO2S) 2 -G108-, bank 2 before catalytic converter, 50 Nm
17 - Engine Speed (RPM) sensor -G28-
18 - Knock Sensor (KS) 2 -G66-
- Engine bank 2
19 - Valve -2- for camshaft adjustment -N208-
- Engine bank 2
20 - Ignition coils (-N-, -N128-, -N158-)
- With power output stage -N122-
21 - Knock Sensor (KS) 1 -G61-
- Engine bank 1
22 - Fuel injector (-N30-, -N33-, -N83-, -N84-)
23 - Camshaft Position (CMP) sensor -G40-
- Engine bank 1
24 - Ground connection
- On engine bracket, right side
25 - Heated Oxygen Sensor (HO2S) -G39-, bank 1 before catalytic converter, 50 Nm
26 - Valve -1- for camshaft adjustment -N205-
- Engine bank 1
27 - Secondary Air Injection pump motor (V101)
- Secondary Air Injection system:
28 - Mass Air Flow (MAF) sensor -G70-
29 - Evaporative Emission (EVAP) canister purge regulator valve -N80-
- On air cleaner housing
- EVAP system:
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.