Hi,

I own an Alfa Romeo 1.9 JTDm 16v SW with an hybrid mod on the original (but new) GTA1749MV. The compression wheel have been forge for about +15% pressure
The ECU (EDC16C39) is already in "Stage2" with DPF OFF, Swirls OFF, Decat, made by some chiptuners in poland (or they tried..)

Previous turbo broke on road, the new one is ok but the N75 map have to be fixed. I doesn't want more hp than it was with the stock turbo, just want to have them again.

Actually the N75 discharge when I weld the foot on the pedal over ~2500rpm : The pressure go up to ~1.55 then go down to ~1.25 then go up to ~1.55 then down....... even if the foot doesn't move. It's zigzagging and lost a lot of horsepower (really, I must be 150 horsepower at best .. for the original 150).

I have WinOLS 2.24 but i'm not really ok with it (and he's without checksumm) and I use a KESS V2.5. Can pay

Thanks

Stock file if needed

Up

I've made the modifications personaly and it seem's working much better. Got an edit from selveti7 but was smocking so I've reduce by 2% the desired boost map and increase the torque limiter with Speedweaver

https://i.imgur.com/k9e9RJ7.png

you need to log n75 values

with multiecuscan, you can easily do that. need to see with ori file whats been car doing also :)