TFSI leon no power no boost

[Rodie121]

Really lacking help on this one guys? I have repaired the old valve and put it back in still no joy so it can't be the valve

 

[Rodie121]

Did some data logging this is at idle but I don't understand why the figures are out so much?!

 

[James_R]

Bin the D and get a G

 

[LeonCR]

D is fine, you really need proper diagnostic check

 

[Rodie121]

It's nothing to do with either valve as I have tried both

 

[big eck]

Just bite the bullet mate and take it some where incase its doing some damage running like that.

 

[Rodie121]

Hmmm, I'm a mechanic myself but I just want to know known faults ? :/ it's such a pain when there is no codes, I have road tested it with live data on and there is practailly no boost presure

 

[big eck]

You sure there isn't a hole in a boost hose somewhere.

 

[Rodie121]

But you can't hear any leaks you would usually here a noise wouldn't you ?

 

[Rodie121]

this is the live data so you can see its not boosting! thoughts?

o and please ignore the chat haha

 

[LeonCR]

As said before get vag com on it

 

[Rodie121]

What can vagcom do that mine can't?

 

[WeeG]

It will give you direct fault codes.

 

[Marshall]

Did you check your pcv valve?
Have you tried removing the pipe from your manifold and see if you can blow through your valve?
The pcv may be ok at idle but when your manifold pressure increases it may be leaking boost.
Worth a check, quick and easy and costs nothing.

 

[Rodie121]

It will give you direct fault codes.

But there is no eml light on surely I would have codes appear on any diagnostics kit

 

[WeeG]

But there is no eml light on surely I would have codes appear on any diagnostics kit

No it doesnt always happen that way from experience

 

[Rodie121]

Did you check your pcv valve?
Have you tried removing the pipe from your manifold and see if you can blow through your valve?
The pcv may be ok at idle but when your manifold pressure increases it may be leaking boost.
Worth a check, quick and easy and costs nothing.

Thanks for getting in on this, I will check this tomorrow I've heard a lot of trouble about these. I will let you know.

I'm hoping on calling lvs racing tomorrow to see if they can give any insight

 

[Rodie121]

No it doesnt always happen that way from experience

Ok thanks I don't have any vagcom myself but I think I need to get it soon!!

 

[Marshall]

Thanks for getting in on this, I will check this tomorrow I've heard a lot of trouble about these. I will let you know.

I'm hoping on calling lvs racing tomorrow to see if they can give any insight

I've had problems with the pcv valve before, which let the car idle ok but was down on power and when blowing through the valve it held very little resistance.
Needless to say it made a difference when replaced.

 

[Rodie121]

How much was your car down on power because if you watch the video you'll see the it's practically not even boosting at all