dave AKA vwdoc1

"Christoph Bollig" <laserpower@gmx.net> wrote in message
news:l4pce1tt56h3o4s75h671qshmb43dm47uo@4ax.com...
> Hi Tony and Dave,

>> Exchange that #2 plug with another plug and see if the problem is still
>> with
>> #2
>
> As mentioned, all plugs were changed.

So the spark plug that was oily could mean a problem with the engine.

>
>> Exchange injector with another.
>
> I am a bit reluctant to pull out the injectors, after I read somewhere
> on SJM Auto-Technik ( http://www.sjmautotechnik.com/ ) that some part
> of the injector could fall into the cylinder and one would have to
> take off the cylinder head if that happens. Not the type of thing I
> want to learn at the moment

Still might have to test injectors.

>
>> Maybe a vacuum leak from a hose or at the injector causing problem.
>
> Do you mean a leak where the injector goes into the cylinder? Any way
> I can test that?

Spraying carb cleaner at fuel injector may cause engine speed to change =
possible a vacuum leak.

>
> I was wondering whether there could be a problem with the injection
> pipes or somewhere in the system. Maybe some dirt clocking it up?
>
> I was hoping there might be some simple test I could try on the
> injection system. But if the diagnosis is difficult, I will just have
> to face it and bring it to the experts

That can sometimes be less expensive (less parts to purchase but more labor)
and usually faster results.

good luck,
dave
(One out of many daves)

dave AKA vwdoc1

"Christoph Bollig" <laserpower@gmx.net> wrote in message
news:l4pce1tt56h3o4s75h671qshmb43dm47uo@4ax.com...
> Hi Tony and Dave,

>> Exchange that #2 plug with another plug and see if the problem is still
>> with
>> #2
>
> As mentioned, all plugs were changed.

So the spark plug that was oily could mean a problem with the engine.

>
>> Exchange injector with another.
>
> I am a bit reluctant to pull out the injectors, after I read somewhere
> on SJM Auto-Technik ( http://www.sjmautotechnik.com/ ) that some part
> of the injector could fall into the cylinder and one would have to
> take off the cylinder head if that happens. Not the type of thing I
> want to learn at the moment

Still might have to test injectors.

>
>> Maybe a vacuum leak from a hose or at the injector causing problem.
>
> Do you mean a leak where the injector goes into the cylinder? Any way
> I can test that?

Spraying carb cleaner at fuel injector may cause engine speed to change =
possible a vacuum leak.

>
> I was wondering whether there could be a problem with the injection
> pipes or somewhere in the system. Maybe some dirt clocking it up?
>
> I was hoping there might be some simple test I could try on the
> injection system. But if the diagnosis is difficult, I will just have
> to face it and bring it to the experts

That can sometimes be less expensive (less parts to purchase but more labor)
and usually faster results.

good luck,
dave
(One out of many daves)

dave AKA vwdoc1

"Christoph Bollig" <laserpower@gmx.net> wrote in message
news:l4pce1tt56h3o4s75h671qshmb43dm47uo@4ax.com...
> Hi Tony and Dave,

>> Exchange that #2 plug with another plug and see if the problem is still
>> with
>> #2
>
> As mentioned, all plugs were changed.

So the spark plug that was oily could mean a problem with the engine.

>
>> Exchange injector with another.
>
> I am a bit reluctant to pull out the injectors, after I read somewhere
> on SJM Auto-Technik ( http://www.sjmautotechnik.com/ ) that some part
> of the injector could fall into the cylinder and one would have to
> take off the cylinder head if that happens. Not the type of thing I
> want to learn at the moment

Still might have to test injectors.

>
>> Maybe a vacuum leak from a hose or at the injector causing problem.
>
> Do you mean a leak where the injector goes into the cylinder? Any way
> I can test that?

Spraying carb cleaner at fuel injector may cause engine speed to change =
possible a vacuum leak.

>
> I was wondering whether there could be a problem with the injection
> pipes or somewhere in the system. Maybe some dirt clocking it up?
>
> I was hoping there might be some simple test I could try on the
> injection system. But if the diagnosis is difficult, I will just have
> to face it and bring it to the experts

That can sometimes be less expensive (less parts to purchase but more labor)
and usually faster results.

good luck,
dave
(One out of many daves)