Boost Issue - RS2 ADU Engine

[steverrquattro]

I had a thread on here, but can't easily find it since moving over to the new system. Basically I bought some chips, fitted them and the car starts to come on boost and then just dumps it.

I've chaged all the main pipes and vac hoses etc, POS and coil packs. I've pulled the codes and there is nothing stored, so I am suspecting the chips that I bought.

The engine and ECU are original RS2 and I want a chip set for 395 BHP. Does anyone have a set, or is there anyone who can map the car?

[UrS4boy]

Basically I bought some chips, fitted them and the car starts to come on boost and then just dumps it.

Sounds like you have a boost leak.

ABY Boost leak testing:

https://www.s2forum.com/forum/technical/engine-and-turbo/65600-s2-3b-and-aby-and-rs2-adu-boost-leak-testing-draft

[newsh]

A boost leak leading to fuel cut would normally throw up an adaptation code.

[UrS4boy]

normally .

Correct. Normally.

[rs200]

I had a boost leak on wastegate valve.. without any fault codes or fuel cut !
try to blow air into wastegate lower chamber !

on my stock AAN (stock 230HP) I have how problem with boost but it is something strange because it can only get 0.9BAR !
what can cause that ???
Iv check everithing.. 4 times boost leak test.. MAF, IAT,TPS,ECU,ISV, DV ..
what else ?