Flat spot at 5200rpm on 2.0T - Does yours do it?

[Poverty]

Copy and pasted from SCN, just want to see what the response is on this site.

I am interested to know just how many VAG 2.0T's have the 5200rpm "flat spot".

What basically happens is that the car pulls cleanly to 5200rpm at which point it may hesitate/stop pulling as hard for approx 500-750rpm then pull again after that. In an S3 I know of, it was described as feeling as if the car drops in to limp mode at 5200rpm until approx 6000rpm at which point it begins to pull again.

Ta

Horace

[NB07]

mines good all the way through the revs but its not often i really boot it on normal roads because of speed limits 

[Janner_Sy]

what map is that. had exactly the same when i had my bluefin stage 2+ installed. I had two of said flat spots, 4.5k and aobout 5.2-5.5k.

this new map has solved that no more flat spots

[jonnyc]

Copy and pasted from SCN, just want to see what the response is on this site.

I am interested to know just how many VAG 2.0T's have the 5200rpm "flat spot".

What basically happens is that the car pulls cleanly to 5200rpm at which point it may hesitate/stop pulling as hard for approx 500-750rpm then pull again after that. In an S3 I know of, it was described as feeling as if the car drops in to limp mode at 5200rpm until approx 6000rpm at which point it begins to pull again.

Ta

Horace

I would say check all of the normal stuff first..

Plugs
PCV
DV
Fuel pump cam follower

Then Panic!   

[Janner_Sy]

plugs are on my list now. the rest are all new

[jonnyc]

plugs are on my list now. the rest are all new

What map is on the car?

[Janner_Sy]

custom one by shark performance

[jonnyc]

custom one by shark performance

Has it always done it? Or developed slowly.. Or suddenly appeared?

[Janner_Sy]

got it when i went to stage 2 bluefin, and it was still there with stage 2+ but thankfully have gone now.

just waiting for before and after logs to come back from when i had the remap done. it might shed some light.

[bacillus]

IMO you need to log the car looking at boost, fuel rail pressure and timing pull at minimum.

[jonnyc]

IMO you need to log the car looking at boost, fuel rail pressure and timing pull at minimum.

Yeah if you just do some logs on requested and actual boost and timing pull and engine load etc that will shed some light on it..

Or just get Revo to map it 

[Janner_Sy]

IMO you need to log the car looking at boost, fuel rail pressure and timing pull at minimum.

yeah we took logs of all that and more iirc. before on stage 2+ bluefin. and after on shark performance.

waiting for ben to sort all the graphs out for me and email them through

[Poverty]

IMO you need to log the car looking at boost, fuel rail pressure and timing pull at minimum.

Yeah if you just do some logs on requested and actual boost and timing pull and engine load etc that will shed some light on it..

Or just get Revo to map it 

The 6 cars that are known by the SCN member to have the flat spot are all running revo. 1 stage 2, the rest all stage 2 plus 

[Top Cat]

Wasnt there a batch of 08, S3's doing the same thing a while back.

[Hurdy]

This sounds suspisciously like Nadeem's issue (Illyun)

There's a ton of info on it and he ended up dropping back from stage 2+ to stage 2. Strangely only affects certain cars and isn't particularly specific to manual or DSG either. Mine has been fine, but I think it was tending to be later cars from 57 reg onwards that suffered more.

http://www.mk5golfgti.co.uk/forum/index.php?topic=3242.0