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#1: CODE 4626?

Posted on 2006-07-12 23:41:30 by poolboy2000

I have a 2000 Golf TDI. Today it seemed to loose about 50% of it's
power, then shortly thereafter the "Check Engine' light came on. I
hooked up my trusty C-Tool scanner and it displayed code 4626. The book
that came with the scanner describes this code as "Charge pressure
Control difference". Of course my Haynes Manual does not even list this
code. I've searched the TDI Club with no luck. Could someone "in the
know" please post a clue of what the heck this means, or a link to a
website that has ECM codes & their breakdown? Or feel free to e-mail me
directly if you can help. Thanks guyz.

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#2: Re: CODE 4626?

Posted on 2006-07-13 04:49:14 by jeff

I do not know the answer to your question, but I did see a Tech
Bulletin that said that ECM codes related to boost pressure (charge
pressure) may be caused by leaking (worn/torn) intake hoses during
charge conditions.

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#3: Re: CODE 4626?

Posted on 2006-07-13 04:49:39 by jeff

I do not know the answer to your question, but I did see a Tech
Bulletin that said that ECM codes related to boost pressure (charge
pressure) may be caused by leaking (worn/torn) intake hoses during
charge conditions.

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#4: Re: CODE 4626?

Posted on 2006-07-13 10:21:13 by Chuckie Finzter

David,

Along with the decrease in power was there an increase in the amount of
black smoke emissions from the exhaust?
If so, it maybe worth looking to see if any or the pipes around the
intercooler have popped off (Right hand inner wing). If the larger pipe has
come detached this would decrease the amount of boost to the turbo and
therefore over fuel the engine. If this is the case and you reattach the
pipe and it blows off again check the smaller upper intercooler pipe has not
come adrift CHECK BOTH ends.

As for the 4626 code......Mate I ain't got a clue. mine didn't come on sorry
no help there.

Hope this helps.

Regards

Chuckie F




&quot;David&quot; &lt;<a href="mailto:poolboy2000&#64;webtv.net" target="_blank">poolboy2000&#64;webtv.net</a>&gt; wrote in message
news:<a href="mailto:4358-44B56C8A-787&#64;storefull-3273.bay.webtv.net..." target="_blank">4358-44B56C8A-787&#64;storefull-3273.bay.webtv.net...</a>
&gt; I have a 2000 Golf TDI. Today it seemed to loose about 50% of it's
&gt; power, then shortly thereafter the &quot;Check Engine' light came on. I
&gt; hooked up my trusty C-Tool scanner and it displayed code 4626. The book
&gt; that came with the scanner describes this code as &quot;Charge pressure
&gt; Control difference&quot;. Of course my Haynes Manual does not even list this
&gt; code. I've searched the TDI Club with no luck. Could someone &quot;in the
&gt; know&quot; please post a clue of what the heck this means, or a link to a
&gt; website that has ECM codes &amp; their breakdown? Or feel free to e-mail me
&gt; directly if you can help. Thanks guyz.
&gt;

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#5: Re: CODE 4626?

Posted on 2006-07-14 02:51:01 by poolboy2000

Nope, no increase in smoke or fumes. Actually it runs fine at low RPM's,
just lacks any power when kicking down to passing gear or pulling a
hill.

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#6: Re: CODE 4626?

Posted on 2006-07-21 14:35:56 by dbm6900

Well I've searched the web with no luck Does anyone out there have a VW
manual that describes code 4626 &amp; what causes the fault? I talked to the
service manager at my nearest VW Dealership, &amp; he said it sounded like
either a stopped up fuel filter, or carbon build-up in the intake
system. I replaced the fuel filter &amp; checked the system for carbon
(looked pretty darn clean, only has 80K miles on it), cleared the codes
again, but with no improvement. Still has no power &amp; after a mile or so
of driving, the check engine light came on again...same code 4626.
Crrrap.

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#7: Re: Woo Hoo!

Posted on 2006-07-21 20:51:13 by poolboy2000

Yay success at last. Problem turned out to be a split vacuum hose going
to the wastegate pulloff chamber. Runs good now with plenty of pep, &amp; no
more fault codes or check engine light. I was fearing I'd loose my left
knut to the VW Dealership in labor charges.

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