AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst TT 1996 8N / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1078/w960_1078-0.png AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst
Trending: relay, maintenance, sensor, check engine, brake, buttons, wiring

Page 41 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-37
       If pressure drops again:  
     
-  Check wire connections, O-rings at fuel 
distributor and fuel injectors for proper seal. 
     
-  Check whether pressure gauge is properly 
sealed.

Page 42 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-38
 
  
Fuel injectors, checking
 
Special tools and equipment  
 
VAG1526A
 VAG1527B
 VAG1594A
 VAG1598/31
Pa
ge 42 of 81 Motronic fuel in
jection s
ystem, servicin
g
11/21/2002 htt
p://127.0.0.1:

Page 43 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-39
      
Checking internal resistance  
    
-  Remove engine cover (arrows).
-  Disconnect harness connector at the fuel injector to be tested.
    
If specified value is not obtained:  
If speci

Page 44 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-40
      
Checking voltage supply  
     
Test requirements: 
     
Fuse for fuel injectors OK 
     
       Electrical Wiring Diagrams, Troubleshooting & 
Component Locations   
     
Fuel Pump (F

Page 45 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst  Electrical Wiring Diagrams, Troubleshooting & Component Locations    -  Check wire connection between terminal 1 and fuse for injector valves 
for open circuit: 
Pa
ge 45 of 81 Motronic fuel in
jecti

Page 46 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-41
      
-  Repair open circuit if necessary.
      If LED lights up:  
     
-  Activation of fuel injectors, checking
     
Checking activation  
     
Test requirement: 
     
Internal resistan

Page 47 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-42
       If LED does not blink:  
     
-  Connect VAG1598/31 test box at wiring harness 
to Engine Control Module (ECM), do not connect 
ECM  Page 24
-19
 . 
    
If wire connection is OK:  -  Ch

Page 48 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-43
 
  
Fuel rail with fuel injectors, disassembling 
and assembling
 
1 - 
Fuel injector insert, 3 Nm 
Use fluid securing material D 000 600 A2 
to insert. 
2 - 
O-ring Removing and installing   P

Page 49 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-44
 
  
4 - 
O-ring 
Removing and installing   Page 24
-46
Always replaceCoat with clean engine oil
5 - 
Fuel distributor 
6 - 
Fuel supply line Tighten to 25 Nm
7 - 
Fuel return line 
8 - 
Harness

Page 50 of 81

AUDI TT 1996 8N / 1.G ATW Engine Motronic Fuel Injection Syst 24-45
 
  
 Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine 
Mechanical, Engine Code(s): AEB, ATW, Repair Group 15; Cylinder head, removing and installing; Intake manifold, removing and installing
Trending: wiring, sensor, buttons, ignition, maintenance, check engine, relay