4.2V8 BHF - Component location diagrams and vacuum line diagrams

DIY/TECH/INFORMATIVE
#1

A few people were asking for this on Audizine

Here are the common vacuum connections in engine bay: Look at the Black Arrows for connections

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#4 in this image

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1 - Evaporative Emission (EVAP) canister purge regulator valve N80

Evaporative Emission (EVAP) canister purge regulator valve N80

2 - Mass Air Flow (MAF) sensor G70 with Intake Air Temperature (IAT) sensor G42

3 - Connector console

Pin assignment

Assignment of holder for connectors (right side)

4 - Valve 1 for camshaft adjustment N205

Rear view

5 - Camshaft Position (CMP) sensor G40

Cylinder bank 1

Rear view

6 - Engine coolant temperature (ECT) sensor G62

At coolant pipe behind cylinder head, bank 1

Rear view

7 - Fuel supply line

8 - Throttle valve control module J338

With Throttle drive (power accelerator actuation) G186 , Angle sensor -1- for throttle drive (power accelerator actuation) G187 and Angle sensor -2- for throttle drive (power accelerator actuation) G188

Rear view

9 - Oil pressure switch F1

Rear view

10 - Camshaft Position (CMP) Sensor 2 G163

Cylinder bank 2

Rear view

11 - Connector console

Pin assignment

Connector console beneath coolant expansion tank

12 - Valve -2- for camshaft adjustment N208

Rear view

13 - Engine Speed (RPM) Sensor G28

In transmission housing above ring gear

14 - Ignition coils with output stages

Cylinder bank 2

15 - 3-pin connector

For Knock sensor 3 G198

For Knock sensor 4 G199

Front view

16 - Secondary Air Injection (AIR) Solenoid Valve N112

Front view

17 - Intake Manifold Change-Over Valve N156

Front view

18 - 3-pin connector

For Knock Sensor (KS) 1 G61

For Knock Sensor (KS) 2 G66

Front view

19 - Ignition coils with output stages

Cylinder bank 1

20 - Secondary Air Injection (AIR) Pump Motor V101

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Installation location of Fuel Pump (FP) Relay J17

Position - arrow 1 - on 9-position relay carrier on left of drivers footwell.

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1.1 - Coolant Circulation Pump Relay J151 (hot countries only)
1.2 -Not used
2 -Secondary Air Injection (AIR) Pump Relay J299
3 -Motronic Engine Control Module (ECM) Power Supply Relay J271
4 -Relay for automatic transmission
A -Engine electronics fuse S282
B -Secondary air pump fuse S130
C -Not used

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Assignment of holder for connectors (right side)

  1. 6-pin connector for Heated Oxygen Sensor (HO2S) G39 and Oxygen Sensor (O2S) Heater Z19 before catalytic converter, bank 1
  2. Connector for starter (terminal 50) and generator
  3. 2-pin connector for camshaft timing control, bank 1
  4. 4-pin connector for Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 and Oxygen Sensor (O2S) Heater 1 (behind Three Way Catalytic Converter (TWC)) Z29 , bank 1

Intake Manifold front

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1 Vacuum unit for intake manifold changeover
2 Knock Sensor (KS) 1 G61
3 Knock Sensor (KS) 2 G66
4 Intake Manifold Change-Over Valve V156
5 Secondary Air Injection (AIR) Solenoid Valve N112
6 Knock sensor 3 G198
7 Knock sensor 4 G199

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  1. Valve -2- for camshaft adjustment N208
  2. Camshaft Position (CMP) Sensor 2 G163 , cylinder bank 2
  3. Oil pressure switch F1
  4. Throttle valve control module J338
  5. Engine coolant temperature (ECT) sensor G62
  6. Camshaft Position (CMP) sensor G40 , cylinder bank 1
  7. Valve 1 for camshaft adjustment N205

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Secondary Air Injection (AIR) Pump Motor V101

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Leak detection pump (LDP) V144

#2

This is a great add. karma for you

#3

Thanks!

I will post more when I get around to it

#4

Sorry to bring up an old thread but is there new pictures for this?

#5

Never worry there is no concerns over bumping old posts. photobucket is a pile O shit and they blocked viewing these. You can down load an extension to fire fox or crome if you want that lets you see the pictures.