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

Fri Jul 20 12:02:46 PDT 2012

Water.  I turned the garden hose on just a little so there wasn't enough water pressure to spin the turbines much, if at all.

That is what everyone was doing it with who was rinsing them out on tdi club.  At one point, I had the hose into the exhaust manifold part, and I could tell a difference in how the water was coming out the turbo exhaust side by how I had the VNT lever positioned.  So I knew the vanes were actually moving.

I had the oil ports covered, and didn't get anything into the blower side.

Dave Cook

________________________________
 From: Tad <tadc at europa.com>
To: VW-TDI at yahoogroups.com 
Cc: VW Diesel Group <vwdiesel at vwfans.com> 
Sent: Friday, July 20, 2012 12:10 PM
Subject: Re: [Vwdiesel] [VW-TDI] Re: Need suggestions on which code to start troubleshooting.

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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