as above replaced my det sensor as was getting a code 34 once i fitted the new det sensor i cleared the ecu so i was getting a 55 the car ran fine for about a day only on one occasion did it not let me go up to full boost... but now when i switch on my boost controller ...it will only boost up to .5 bar boost exactly the same when i was getting the code 34 ...but when i do the code check it comes up 55 all clear:? somebody help please...it's doing me fooking head in ...sumo if your reading this i'll be pickinig your brains as well haha!!;-)