>I  noticed something else.  When it runs poorly..  the injectors make a
>slight tapping noise,  when it begins to run better,,  the tapping goes
>away.  The worse it idles the louder the taping noise as soon as the noise
>goes away, the engine runs very smoothly.  This operation is erratic.   It
>is almost as if there is a vaccum leak on a carburated engine.  I spoke to a
>local repair shop and they sugested changing th e fuel filter,  siting that
>if there was too little fuel in the injector rail the injector would be
>empty or close to it and yuo would hear the the seleniod in the injector
>open and close

Are you sure it's the injectors tapping? A loose valve seat that holds the
valve open can also sound similar and cause rough running.

 -Otmar-
72(front),73(rear),76,78,82,87(parts) Stretch bus
82 A3 GTI Westfalia turning into a hybrid electric Stretch
Several EVs (Electric Vehicles)
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