I have a bad injector and would like to replace it....how hard is this to do and what all do i need to do?? By the way the car is a 97 TA WS6. Any help would be great thanks!!!
-Justin

 

Its not hard to do, remove fuel lines with disconnect tool. remove vacuum line from fuel pressure regulator. unplug all injectors. remove 4 bolts holding fuel rail to intake, then lift straight up on fuel rail removing rail and injectors as one unit.
Now try to drain all the fuel from fuel rail into something because there is quite a bit in there.
To replace an injector just slide the metal clip holding injector to the side, install new injector, slide clip onto new injector.
Lube the injector O rings so they slide easy into the manifold on reinstall.

 

Before disconnecting the fuel lines, relieve the fuel pressure by unscrewing your gas cap and depress the schrader valve on the back of the fuel rail with a rag to absorb any gas.

 

You don't even need to disconnect the fuel lines. Just loosen the clamp that holds the 2 hard lines to the drivers rear corner of the intake manifold.