My 16V doesn't like to accelerate...

[roccit_53 at scirocco.cs.uoguelph.ca (C Boyko)]

Well, there are lots of options I suppose, but it doesn't sound that
different from the symptoms my 8V had, which we referred to as
"arschlaufen". It just ran like ass. It was not always bad, but it was
impossible to tune, and had a near bucking sort of stutter on acceleration.
Sometimes. A flow test showed that one cylinder flowed 25% less than the
other three, and a new (used) distrubutor had me singing a very happy song
a year ago. And that distributor is now sitting unused in a bucket :)
Cathy
PS: A side note, I keep hearing a sound that sort of resembles thunder, and
I should get out and throw a tarp over the kid's TDI mess casue they're
calling for rain. But I now realize it's a jet car staging. Gotta love
living near the track!

On 8:17 pm 05/19/07 "John C. Worden" <johncworden@xxxxxxxxxxx> wrote:
> This has been an ongoing problem that I have been working on
> in between work and prepping to build a new garage and house.
> Bentley mentions hesitation under load and hesitation under
> acceleration.  After putting in the new O2 sensor I realized the
> difference between the two as now I have hesitation under acceleration
> where as it appears I had both before.
>
> The car idles well.  When I step on the gas while driving it is like
> it has a stutter (for lack a better word)that gets better the higher
> the RPM.  On the last drive, above 3K it smoothed out, and then a
> little of 4 stuttered some more.  This also isn't consistent.  I can
> accelerate and it will stutter and then
> come out of it and then go right back.
> I have done the following:
> Topped off the tank(higher octane of course)
> new air filter(old one was very nasty)
> checked the cold start injector and all is good
> air flow plate rest position-good
> transfer pump-good
>
> Now I haven't checked the main pump, but now have a pressure tester
> for it(just got it)
> only checked #1 injector's spray pattern-good.  The others didn't
> want to come out
> and I will have to remove the upper half of the intake manifold to
> get at them, which means
> ordering gasket, new o-rings etc-don't want to do that unless that is
> a realistic cause.
> I also haven't checked the plunger in the fuel distributor.
> I am wondering if it were a fuel pump on the way out, a bad injector
> or plunger wouldn't it
> be consistent or could it cause my symptoms?
> Any other thoughts on what to check?
>
>
>
> John C. Worden
> Bucksport, Maine
>
> ''98 Dakota 4x4-
> '88 Scirocco 16V-
> '86 Scirocco 8V-Now a 16V!
> '78 Scirocco Brazil Brown Metallic, 4 speed.- In the Rotisserie and
> under restoration
> '89 Polaris Indy Deluxe
>
>
>
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