costas1 Posted February 4, 2015 Share Posted February 4, 2015 so i was given a brand new profec b in the box as a present but seems to have some issues..first of all has reversed screen colours..works and the screen is red (supposed to be blue) and when hits warning gets blue (supposed to turn red)..WTF? a video i uploaded in youtube also yesterday i took the car for a dyno session and the car was running very lean at high boost so we tried to lower the boost..apparently will not respond..we set the controller from 45% to 20% and still the car was hitting 1.3bar..so the minimum boost i can have right now is 1.2 bar coming from the exhaust and keeping the controler switched off....the car was like that for the last 5 years with no issues but i decided to install the profec b about two weeks ago..time to throw it away... anyone know how can i test it or if somenone in uk can fix it or to check it? Quote Link to comment Share on other sites More sharing options...
Silver.bullet Posted February 4, 2015 Share Posted February 4, 2015 Remember seeing this on eBay a while back when i was looking for a boost controller. If they are any good or know what they are doing will probably have to be you to find out. But might be worth a shot: http://www.ebay.co.uk/itm/Greddy-Profec-B-SPec-2-Boost-Controller-Repair-/161568873682?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item259e415cd2 They are listed under Repair. Quote Link to comment Share on other sites More sharing options...
costas1 Posted February 5, 2015 Author Share Posted February 5, 2015 Thx mate Quote Link to comment Share on other sites More sharing options...
Ric Posted February 5, 2015 Share Posted February 5, 2015 You need to read up on bpu The turbos will overboost well past 1.2bar without a restrictor ring in the exhaust to dangerous levels Considering you havent done BPU correctly as you still have the stock fuel pump etc i would guess you don't have a restrictor ring. A boost controller can only raise boost, it cannot lower it, thats the job of the wastegate which at the moment is running wild because you have no restrictor ring. Running your car at 1.3bar with a stock fuel pump is just asking for a blown turbos or even engine, i'd stop driving it NOW untill you fix the issues. Quote Link to comment Share on other sites More sharing options...
mellonman Posted February 5, 2015 Share Posted February 5, 2015 As Ric has just said boost controllers only raise boost so i doubt very much there is anything wrong with it , and i bet the colour thing is in the settings Quote Link to comment Share on other sites More sharing options...
costas1 Posted February 6, 2015 Author Share Posted February 6, 2015 The car has been running 1.2 for the past 5 years now so my guess is that it has a restrictor ring..no major overboosting all these years..as far as the boost control goes yes i know that you can not lower the boost but this one does not seem to respond..as far the colour thing nothing in the manual written and noone ever experienced. Something similar..so i do not now..and as far as i know j spec supras are ok to run at 1.2..even in stock fuel pump.,i will change it.anw and see what happens..maybe injectors need a service or cleaning - - - Updated - - - Quote Link to comment Share on other sites More sharing options...
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