24-14
      
Fuel injection system, servicing
 
      Servicing ignition system   page 28
-1   
     
Notes:  
     
Fuel hoses in the engine compartment must be 
secured with spring-type clamps. Screw-type 
clamps or equivalent must not be used. 
     The Engine Control Module (ECM) has On 
Board Diagnostic (OBD) capability, and is 
equipped with Diagnostic Trouble Code (DTC) 
memory. Before repairing or adjusting any 
components or systems, first check DTC 
memory. Also check all vacuum connections for 
leaks ("false air"). 
     For proper operation of electrical and electronic 
components, a Battery Positive Voltage (B+) 
supply of at least 11.5 volts is required. 
     Do not use any gasket sealers or other 
automotive chemical compounds that contain 
silicone. Traces of silicone drawn into the 
engine pass unburned into the exhaust and can 
damage the oxygen sensors. 
     Do not use any electrical contact sprays or 
equivalent near oxygen sensor connections. 
Pa
ge 18 of 166 Motronic Multi
port Fuel In
jection 
(MFI
) and i
gnition s
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11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU03.24.1 
-  Slide injectors (vertically) into position in fuel rail 
and secure injectors with retaining clips. 
     
-  Place fuel rail together with secured injectors on 
manifold and press fuel rail and secured 
injectors in evenly. 
Pa
ge 141 of 166 Motronic Multi
port Fuel In
jection 
(MFI
) and i
gnition s
ystem
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU03.24.1