niles08

i juist bought myself a 99 impreza gt last week with some mods.
It got a supersprint downpipe and a ems ecuteck 250/260pk and a boost gauge the rest is stock.
but already got some issues with the car.
First off the the check engine light sometimes comes on when the engine is cold at low rpm will stay there till i give it some gass about 2500 rpm and its gone.
When the engine is warm its gone completely.

the second thing i have in 3 gear when i give full full throttle at 4000/5000
its starts to stutter and holding back the boost gauge start tripping around 1 bar and 1.1 bar (14 psi/15) 4 gear is the same and 5 especially form low rpm
it will go up little more than 1.3bar(18psi) and starts stuttering is this the fuel cut ?
1 and 2 gear run fine holds its boost go's up to 1.3 and falls back to 1.1 and stays there. Im new to these boxers engines i hope tiss forum could help me

DEANO1988

iTrader: (5)

hi and welcome, id have a guess at maf and lambda possibly more.... when was it last serviced.....

also have a read of this.

http://www.scoobypedia.co.uk/index.p...eadingECUCodes

d4vidh

Does the down pipe have an O2 sensor fitted to it?

niles08

It got compleet service history by dealer been 5000km ago last service got timing belt change 10000km ago
O2 its been probly been fitted behind te turbo on down pipe

niles08

juist found this on the net my car is making the exact same noise as on the video and it was the actuator on the turbo could this solve my issues ?

niles08

i juist read out my ecu giving me a code 22 knocksensor do i need to replace it ?

niles08

juist got my kncok sensor out but there is rust on the surfuce where connects on the block and also on knock sensor *** well could i juist clean it and see if it works or buy a new one ?

niles08

replaced the knock sensor code is gone now. But the problem is still remains im thinking its the actuator thats stuck and the wastegate is shut i couldn't move the actuator by hand. Could this result to overboosting and
and stuttering and boost going up and down ?
Also i could pull down the Original dump valve with my thum is this normal ?
Im a bit lost hope you can help me.