Volkswagen Golf / Golf GTI / Jetta. Manual - part 195

24-34

 

  

   To prevent injuries to persons and/or damage to 

the fuel injection and ignition system, the 
following must be noted:  

  

  

WARNING!

 

  

  

Fuel system is under pressure! Before 
opening the system place a cloth around the 
connection. Then release pressure by 
carefully loosening the connection.

 

  

  

 Do not touch or disconnect ignition coils when 

the engine is running or being turned at starter 
speed. 

  

  

 The ignition must be switched off before 

connecting or disconnecting injection or ignition 
system wiring or tester cables. 

  

   Observe following if test and measuring 

instruments are required during a road test:  

  

  

 Test and measuring instruments must be 

secured to rear seat and operated by a 2nd 
person from this location. 

  

  

WARNING!

 

  

  

If test and measuring instruments are 
operated from front passenger's seat and the 
vehicle is involved in an accident, there is a 
possibility that the person sitting in this seat 
may receive serious injuries when the airbag 
is triggered.

 

Fuel injection system, servicing

24-35

 

  

  

 If the engine is to be turned at starter speed, 

without starting: 

    

Note:  

Removing fuse 29 interrupts the voltage supply to 
the fuel injectors. 

-  Remove fuse 29 (fuel pump) from fuse holder.

-  Remove engine cover. 

    

Note:  

Mark connector and component before 
disconnecting. 

-  Disconnect connectors from ignition coils 1 

through 6. 

Fuel injection system, servicing

24-36

 

  

  

Rules for cleanliness

 

  

   When working on the fuel supply/fuel injection 

system, pay careful attention to the following 5 
Rules of Cleanliness:  

  

  

 Thoroughly clean all unions and the adjacent 

areas before disconnecting. 

  

  

 Place parts that have been removed on a clean 

surface and cover. Do not use fluffy cloths! 

  

  

 Carefully cover opened components or seal, if 

the repair cannot be carried out immediately. 

  

  

 Only install clean components: Only unpack 

replacement parts immediately prior to 
installation. Do not use parts that have been 
stored loose (e.g. in tool boxes etc.). 

  

  

 When the system is open: Do not work with 

compressed air if this can be avoided. Do not 
move vehicle unless absolutely necessary. 

Fuel injection system, servicing

24-37

 

Engine code  

BDF  

Idling check  

  

  

idle speed

1)

 

 

rpm  

640 TO 720

2)

 

 

Motronic Engine Control Module (ECM) -J220-

3)

 

 

  

  

System designation  

  

Motronic ME7.1.1  

  

Part number  

  

 Parts catalog  

  

Governed speed  

rpm   from approx. 6500  

1)

 idle speed check 

 

Page 24-125

  

 

2)

 Not adjustable 

 

3)

 Replacing Motronic Engine Control Module (ECM) -J220- 

 

Page 24-162

  

 

Fuel injection system, servicing