sensor AUDI A4 1998 B5 / 1.G AFC Engine Fuel Injector Leak Testing And Delivery Quantity Checking Workshop Manual
Page 1 of 5
24-33
 
     
Fuel injector leak testing and 
delivery quantity, checking 
     
CAUTION! 
     
Fire hazard! Do not smoke, work near heaters 
or open flame, or have anything in the area 
that could ignite fuel. 
     
System pressure OK   page 24
-20
 
     
-  Remove intake air duct between Mass Air Flow 
(MAF) sensor and sound dampener. 
     
-  Loosen ignition wires only as far as necessary to 
remove fuel rail, and lay to one side. 
     
-  Disconnect fuel injector harness connectors.
    
-  Disconnect fuel rail from intake manifold.
-  Disconnect vacuum hose from fuel pressure regulator.
-  Lift (and afterward support) fuel rail (complete with fuel injectors) from 
intake manifold. 
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