[Vwdiesel] [VW-TDI] Re: Need suggestions on which code to start troubleshooting.

Fri Jul 20 10:10:35 PDT 2012

That's nice to hear Dave.

One Q, what did you "rinse it out" with? :)  I'd feel funny about spraying
my turbo out with a hose.. :)

On Fri, Jul 20, 2012 at 7:38 AM, Dave Cook <davevw at yahoo.com> wrote:

> **
>
>
> This reminded me that I don't think I ever posted the results of fiddling
> with the turbo on my friend's '01 Jetta.  We had been off and on working on
> the limp mode and overboost codes for a couple years.
>
> I pulled the turbo and determined that the actuator was bad, as it didn't
> hold vacuum.  When I pulled it off, a bunch of rusty junk came out of the
> little breather hole.
>
> I also determined that the VNT lever wasn't moving as far as it should.  I
> was never able to get the turbo open-I heated it, banged with hammers,
> sprayed with PB Blaster, and even tried the trick of melting wax into the
> gap but it never came loose.
>
> So eventually I was able to manually move the lever to break it free.  I
> sprayed some oven cleaner in there and worked the lever, let it sit, added
> more cleaner, worked the lever, etc etc until it was moving freely and
> easily. I then rinsed it out and put everything back together.
>
> My friend told me a couple days later that once again he was in love with
> his car!
>
>
> Dave Cook
>
> ________________________________
> From: fugazi48 <heltonbr at yahoo.com>
> To: VW-TDI at yahoogroups.com
> Sent: Friday, July 20, 2012 8:08 AM
> Subject: [VW-TDI] Re: Need suggestions on which code to start
> troubleshooting.
>
>
>
>
> Thanks for the help.
>
> This is a 2003 with 220,000 miles. ALH I believe.
>
> I cleared the codes yesterday, and after 2 drive cycles, all but the boost
> code returned. I usually only get weak acceleration(limp mode) when it is
> hot. Today was mild.
>
> I checked the EGR for carbon back in 2008, looked clean, so I never
> checked the intake for the buildup.
>
> The turbo actuator had failed in 2008 due to duty cycle. The tech was able
> to get the VNT to swing again with a little play. I am assumeing I may need
> to check the turbo again.
>
> I'll check the EGR this weekend, see if the valves actuate. Inspect the
> wiring. I will take photos in case it helps others.
>
> Thanks.
>
> --- In VW-TDI at yahoogroups.com, Tad <thadddeus at ...> wrote:
> >
> > Assuming this is an ALH engine, this is consistent with intake clogging
> > plus a bad GP harness... except for 19560/P3104/012548 - Valve for Intake
> > Manifold Flap (N239): Short to Plus... not sure what to make of that.
> >
> > On Thu, Jul 19, 2012 at 10:42 AM, fugazi48 <heltonbr at ...> wrote:
> >
> > > **
> > >
> > >
> > > I had been ignoring a lamp for loose glow plug harness for a while.
> > >
> > > Been experiencing turbo whine and occasional loss of power. Decided to
> > > plug in my code reader.
> > >
> > > Received this list.
> > > 16618/P0234/000564 - Boost Pressure Regulation: Limit Exceeded
> (Overboost
> > > Condition)
> > > 17055/P0671/001649 - Cylinder 1 Glow Plug Circuit (Q10): Electrical
> Fault
> > > 17058/P0674/001652 - Cylinder 4 Glow Plug Circuit (Q13): Electrical
> Fault
> > > 16785/P0401/001025 - Exhaust Gas Recirculation (EGR) System:
> Insufficient
> > > Flow De
> > > 19560/P3104/012548 - Valve for Intake Manifold Flap (N239): Short to
> Plus
> > > ==
> > > 17057/P0673/001651 - Cylinder 3 Glow Plug Circuit (Q12): Electrical
> Fault
> > >
> > > Since EGR is on top, and leaking oil, I thought i would clean it up ,
> and
> > > check if first. Any other suggestions?
> > >
> > > I am not sure what the intake flap even looks like.
> > >
> > > Thanks for any suggestions.
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
> [Non-text portions of this message have been removed]
>
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