hi, i had trouble with loss of turbo boost,warning light came on. i got the fault read came back boost control valve sensor, i got the part no. off the original 12787706 and replaced it. did'nt work then read on here there was another simular valve under the plastic cover so i put the original valve back and replaced the the 1 under the plastic cover with the new 1!!! so now i have 2 valve/sensors part no 12787706 fitted and the car runs like a dream!! i'm confused!!!!
i've since read the part nearest the turbo should have been part no 55354158 and part no 12787706 under the plastic cover but mine were the other way around
can anybody please confirm!!!! thanks