is this usual behaviour from the S2????

[newsh]

yep

[andy10v]

also i have a pipercross induction kit, rs2 maf sensor, k24 hybrid turbo, forge re-circ and vented adjustable dump valve and now this exhaust system

Any other mods? Is this on stock software?

Have you seen what you get with the n75 unplugged?

[Error404]

It seems to me more than a coincidence that some random bunch of franchised (pipe) benders took your car part and now it ain't right, I'd take it all apart again and make sure its carefully back together the way Herr Audi intended.
As said above you're lucky you've not got a damaged engine, if it was me I'd be pis$$ed

[andy10v]

What would happen if boost pressure was routed to the top nipple on the wastegate? Just wondering if somebody looked and thought something must go on there.

[prj]

Same as if there is nothing connected to the wastegate at all...
Boom.

[R31LLY]

Stock will cut fuel mostly after ~4500rpm.
Sounds to me like there's no boost control.

yes 4000-4500rpm the car misfires/cuts out so maybe something is shutting the car down, everything i look at seems fine even the diaphram... hold up still reading through my replys lol

[driftin jo]

yes 4000-4500rpm the car misfires/cuts out so maybe something is shutting the car down, everything i look at seems fine even the diaphram... hold up still reading through my replys lol

It's cutting fuel because it is going above the programmed boost ~14 psi, you said you were hitting 30, so it's doing its job to stop your rods looking like bananas.

[R31LLY]

does it sound like a remap will cure this? as thier is nothing wrong with anything on my car at all, ive checked and checked again and again,

i was reading about an evo and a scooby that had this problem after a decat and they said they needed a new coilpack, could this be true on the s2?? maybe ive had a problem a while and now the exhaust has made it noticeable through the turbo spiining up alot quicker??

also how much are coilpacks and who good to get them off??


thanks

[prj]

Disconnect the N75 valve and see how much boost you have.
The problem is not a remap, there is something mechanically wrong with your car.

[R31LLY]

ill take disconnect n75 today and come back to you, i have a slightly frazzled lambda sensor wire cover maybe from when they fitted a second lambda in the downpipe, the wires look ok but if they are damaged inside could a bad lambda make the car run with the above symptoms??

[prj]

No, lambda can not do that...

[Costash]

Experienced this some time ago,2 coil packs were on the last way to heaven. I've replace all of them for peace of mind ;they was 18 years old coil packs

[prj]

Experienced this some time ago,2 coil packs were on the last way to heaven. I've replace all of them for peace of mind ;they was 18 years old coil packs

His problem are not coilpacks!
He has 30 psi boost ... that is the problem.

[driftin jo]

How would a faulty coil give you overboost

[Costash]

Did he get the new turbo fitted but no remap and reaching 2 bar overboost, right?