S6 Boost Blues

[UrS4boy]

Can you prove it? This is an interesting discussion.

Read this post and decide for yourself:

http://forums.audiworld.com/showthread.php?p=18772235

[igor136]

Read this post and decide for yourself:

http://forums.audiworld.com/showthread.php?p=18772235

This is a great post (as usual). Thank you very much.

[geneandbolly]

well, that seems to be fairly comprehensive and good to know that the J model (which is readily available and half the price) is just as good as the H model . .

many thanks!

[geneandbolly]

sorry, will try another post . .

[geneandbolly]

no more "boost blues" - this old tub goes like stink!!!!!

:devil:







old and older . . .

[220bhp]

I don't think your problems are over yet ,with the turbo and manifold glowing red like that. I had this issue. It was caused by a faulty tps making the car run lean .

[K Simmonds]

I don't think your problems are over yet ,with the turbo and manifold glowing red like that. I had this issue. It was caused by a faulty tps making the car run lean .

Another cause of this could be a blocked turbo coolant return pipe, they can gack up solid and the turbo fries.

[geneandbolly]

interesting that you say that as the car pulls really well from 3000-4000rpm then kind of runs a bit flat, almost like i should change up a gear at that point.

what is that TPS thing you mentioned that's causing it to run lean??

[UrS4boy]

what is that TPS thing you mentioned that's causing it to run lean??

Seeing that I am such a terrible teacher, I will let you discover the throttle position switch (potentiometer) by clicking on one of the live lables in this live version of my UrS Engine Bay Device Map:

http://members.shaw.ca/speedtek/UrS%...ice%20Map.html

[geneandbolly]

that's brilliant, thanks!!

you're not such a bad lad after all . . .

[geneandbolly]

ok, what about this symptom - had the car out for a blast this evening and pushed the loud pedal all the way forward and saw it soar to 4250rpm easily then the pull seems to slow down towards 5000rpm when suddenly a huge backfire happens through the exhaust!!

any ideas what's causing that?

[UrS4boy]

...saw it soar to 4250rpm easily then the pull seems to slow down towards 5000rpm when suddenly a huge backfire happens through the exhaust!! Any ideas what's causing that?

Yes.

http://www.s2forum.com/forum/showthr...AAN+boost+leak

[geneandbolly]

merci monsieur!

[martinws]

Perforated butt plug by the looks of it Craig!

[bazburn]

Perforated butt plug by the looks of it Craig!

He'll have that covered in no time then....