DS3 thp 156 - Turbo cuts at 5100 rpm

[Chris_Blue]

Torque pro app may well not get rid of light. will only tell you the fault code, and reset the fault code. The light will remain

It has to be cleared with a citroen compatable diagnostic tool I believe

If you have OEM Cat back on, the fault should not be there any more (Unless other modifications are causing the light) but the light will need resetting

[BBZG]

djsly which FMIC are you using?
Where do you go for dyno I am interested to join?

Considering downpipe, did you install new 200cpi without remap stage 2?
Considering errors, if you went back to OEM cat you need to erase them first and see if they come back again.
Errors you can erase with Torque app but need good adapter like Viecar if not than use Diagbox
Same thing with boost you can check it with Torque but will not give you good readings, eg. 0.8bar instead 1.2 bar but with it you can check trough revs what is happening. Diagbox will show you right picture.

[djsly]

sorry, maybe I wrote a bit confusing post

I meant by problem still there: boost cut off is stil there.
warning lights went off and stayed off when i deleted the error after OEM cat installation.

So my boost cut off was still there while running OEM exchaust system. So I guess cheap 200cell cat had nothing to do with boost cut off @ 5100 rpm.

FMIC :
http://www.ds3club.co.uk/filedata/fetch?id=401011

I hope link works. If not I've posted pis in this thread:
http://www.ds3club.co.uk/forum/ds3/d...hp-intercooler

Also wanted to install cupra's, but too much cutting material turned me off...

dyno (admin, if you think there is too much of advertising, please delete the links. I just want to help with infos about Slovenian tuning market):

been to css https://www.css-tuning.com/ but not very satisfied with technical knowledge of this guy
on friday i'm seeing this guy: https://www.veckonjev.si/

Just to get info about power, torque and boost.

I hope that power/torque and turbo graphs will show improvement after DV change. like I said, physically there is no more that cut off feeling. But that might be just a placebo efect

Will let you know on friday.

[djsly]

Update:


Stock exhaust and 200cel DP, engine acts the same (cuts boost at cca. 5k rpm). Only difference is the engine light "ON" on 200cell dp, which is expected with this specific DP that I own.

I've done several dyno runs (oem exhaust, modified exhaust,...), now it shows 154PS and 240Nm torque. Which I think is ok. But still I don't like the power graph curves from 4.700 - 5.500 rpm. It slightly goes down, and then up again.

Current setup:
200cell dp + 63mm exhaust
FMIC
Spark plugs from Racing
dyno results: 151Ps@ 4750 RPM; 154ps @5.400rpm; 239,9Nm@4.500 rpm

Torque pro info 80-120kmh in 3rd = always between 5.1 and 5.5 sec


Boost difference now is just 0,1 bar (desired vs. measured) @ 5.000 rpm. So cut off is not so big as at the beginning.

Only thing replaced was a DV, which I think does not effect on anything. But I might be wrong...

Also got a suggestion to change sparks to OEM (forgot about that), so that's one more thing to do...

Will keep updating you.

Thanks for ideas and suggestions for now! Open for new ones