[urq] hesitation, bucking on takeoff - not resolved yet!

[John Sherrow]

My lone experience with bucking was fuel cut out. The fuel pump wires had
come loose at the pump!! I vote fuel related.

----- Original Message ----- 
From: "Ben Swann" <benswann at comcast.net>
To: <audi at humanspeakers.com>
Cc: <urq at audifans.com>; <quattro at audifans.com>
Sent: Wednesday, October 19, 2005 8:45 PM
Subject: Re: [urq] hesitation, bucking on takeoff - not resolved yet!


> I understand what you are saying, but as I have swapped out both ECU and
> ignition control module, I don't suspect timing.
>
> Ben
> ----- Original Message ----- 
> From: "Huw Powell" <audi at humanspeakers.com>
> To: "Ben Swann" <benswann at comcast.net>
> Cc: <quattro at audifans.com>
> Sent: Wednesday, October 19, 2005 8:18 PM
> Subject: Re: [urq] hesitation, bucking on takeoff - not resolved yet!
>
>
> >
> >> Hall must be in window for car to run - timing is not adjustable.  I'm
> >> pretty sure it is dead center of window, but wouldn't hurt to double
> >> check. I doubt this has anything to do with problem.
> >
> > So on your car the computer runs the timing based on the flywheel pin
and
> > sensor, right?
> >
> > Still, I'd be curious what a timing light shows... especially if you can
> > somehow measure it while the problem is occurring (elves in the engine
> > compartment while driving?  can you make it happen against the brakes?)
> >
> >>> You don't mention checking this, so I'll suggest it (since the
symptoms
> >>> could fit the diagnosis) - how is your ignition timing?
> >
> > -- 
> > Huw Powell
> >
> > http://www.humanspeakers.com/audi
> >
> > http://www.humanthoughts.org/
>
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