[Vwdiesel] Diesel injector pump questions.
82 Diesel Westy
dieselwesty at yahoo.com
Tue May 15 13:03:36 EDT 2007
Sounds like that could be your problem, with all the
work you did and you still have the issue, I would
look at the pump for sure, not blow by.
--- LBaird119 at aol.com wrote:
> There's always the possibility that your rings
> aren't well seated
> after sitting while doing all the work.
> If you have a bad injector or more they could be
> soaking the
> inside of the chamber and it's "afterburning."
> I had a similar problem sometimes on my Rabbit and
> on top of
> the pump there are a couple little "fingers" under
> the return
> spring. If I wired one of them to stay where it
> sits while in the
> idle position, it stopped the problem. No clue just
> what or why
> but it did fix it. This was also after having the
> pump rebuilt but
> it was doing it before as well.
> Generally if the fueling is turned up too high
> then the car doesn't
> want to return to idle quickly or will idle high for
> a bit before
> dropping. It usually doesn't want to take off.
> Return line restriction might cause this as well.
> It seems like the
> VW pump goes "up" in fueling or timing as the
> internal pressure
> rises. GM pumps go down so a constant starve out is
> from a
> plugged return line. Worth checking that one.
> See what's free at
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
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