FSI Inlet Manifold Change-Over Valve?

A2Z

A2OC Donor
Hi, I have just the one fault code remaining on the fsi fixer upper which is a very good thing but I'm now in need of an inlet manifold change-over valve and am struggling to find the correct part.

I understand the original part was made by Pierburg but both Ecp and gsf don't seem to have the part unless it also goes by another name so if anyone would have the part number (or even better the part itself) that would really help?

Thank you 👍
 

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I have fixed mine a long time ago but from what I can remember this can happen in any (possibly) of the following cases:

1. The ecu dictates the N316 solenoid to actuate the flaps. If this does not happen then the potentiometer that monitors its position does not reach the "setpoint".

2. The actual feedback mechanism, i.e., the potentiometer is faulty thus the "setpoint" cannot be reached.

3. The actual flaps are stuck.

The above can also be attributed to wiring loom issues.

Evros
 
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Good Afternoon,

I think what you are describing is item 42 here


Yes, Pierburg made the original, still make them though on version 4 now. I paid £45 on ebay a couple of years ago but cheaper aftermarket brands available, common item used on many models.

HOWEVER don't buy until you have tested to check it is faulty, I suspect it may be something else causing this fault code to appear.

As Evros has alluded to 17439/P1031 can be a mountain to climb, lots of reading on here if you wish, this will give you a flavour


Lets just hope it is as simple as a faulty solenoid valve.

Andy

Edit. I see you have been around for a while so you are probably aware.
 
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Try removing the vaccum hose and "suck" it (no pun intended) either "manually" or using a syringe or bleeding kit.

You should be able to hear the flaps moving and see the actuating arm move along with them.
 
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Thank you both 👍

Although I've owned many A2's over many years, the FSI is a totally new experience for me having never owned a petrol A2 before and so a real learning curve and i really do appreciate all advice given 👍
 
Thank you both 👍

Although I've owned many A2's over many years, the FSI is a totally new experience for me having never owned a petrol A2 before and so a real learning curve and i really do appreciate all advice given 👍


Have a read of this, it'll give you an insight into Fsi'ology.
Mac.
 

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Just to update this thread with good news that hopefully may help others with the same P1031 fault code on their FSI.

After doing the suck test recommended above, i went ahead and purchased a new Pierburg solenoid valve (which my VAG hand held code reader had diagnosed as the fault) and fitted it this afternoon.

I am delighted to say that the fault code is no more and having giving the car a thorough work out cannot get it reappear.

Previously the fault code would instantly appear after being deleted and occasionally the engine management light would accompany it too.

So I'm delighted to declare it officially fixed!

Just to note, the Pierburg valve (which is the same as the original one fit to the car from new 20 years ago) goes under a variety of names from egr solenoid valve, to manifold change-over valve, to bypass regulator valve, inlet manifold runner valve and so on and there are also many different variations of part numbers.

There are also lots of other manufacturers making similar parts, many cheaper but I was adamant I wanted to only use the original Pierburg one to avoid any potential problems.

For reference the OE part number is 037 906 283 D but the correct Pierburg one for the FSI will not wear that part number anymore and is now 7.28098.04.0

Strangely enough the usual parts suppliers Euro Car Parts and GSF don't carry them and can't get hold of them but they are available on Autodoc although i have never personally used them.

Anyway I'm delighted to be report my good news and to have saved a nice FSI from potentially becoming tin cans and i hope this also helps someone else in the future too 👍
 

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Just to update this thread with good news that hopefully may help others with the same P1031 fault code on their FSI.

After doing the suck test recommended above, i went ahead and purchased a new Pierburg solenoid valve (which my VAG hand held code reader had diagnosed as the fault) and fitted it this afternoon.

I am delighted to say that the fault code is no more and having giving the car a thorough work out cannot get it reappear.

Previously the fault code would instantly appear after being deleted and occasionally the engine management light would accompany it too.

So I'm delighted to declare it officially fixed!

Just to note, the Pierburg valve (which is the same as the original one fit to the car from new 20 years ago) goes under a variety of names from egr solenoid valve, to manifold change-over valve, to bypass regulator valve, inlet manifold runner valve and so on and there are also many different variations of part numbers.

There are also lots of other manufacturers making similar parts, many cheaper but I was adamant I wanted to only use the original Pierburg one to avoid any potential problems.

For reference the OE part number is 037 906 283 D but the correct Pierburg one for the FSI will not wear that part number anymore and is now 7.28098.04.0

Strangely enough the usual parts suppliers Euro Car Parts and GSF don't carry them and can't get hold of them but they are available on Autodoc although i have never personally used them.

Anyway I'm delighted to be report my good news and to have saved a nice FSI from potentially becoming tin cans and i hope this also helps someone else in the future too 👍
Your Masters Degree, in FSIology, is in the post ...
Mac.
 
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