I have just fitted a uprated fuel pump and regulator and now when I come on boost it just shoots up to 1.5 bar and the fuel is instantly cut. I am just wondering if any one else has encountered this problem after instaling the pump and regultor. I have had the phase one ecu upgrade by power engineering so will I have to go and get a re-map or is there another possibility to why it is overboosting ?

Any help will be appreciated

Gavin

 

Take it back to PEng. Mervyn fixed my 1.6 bar overboost (stock STiV3) and it has never missed a beat since. I don't think you should have this problem if the map is good!
Good luck, i know how alarming the cut is...
Graham.