Hello everyone,
Im French, realy sorry for my bad word.
Context :
I have a BMW x6 e71 50i N63 engine from 2008. Following the breakage of the oil pump chain, the engine was completely rebuild.
This is also the case for the 2 turbo, they were controlled by the company STK Turbo Technic.
The diagnosis tells me this : Turbocharger 1 indicates charging pressure fault
So I did a lot of tests and I changed the following parts here is the list:
Changing the 2 solenoid valves (part 11747626350)
Change of breather (part 11157646087 and 11157575642)
Changing the 2 aircooler sensors (part 13627585493)
Changing the charge water pump (part 11517566335)
Change of 4 lambda catalytic probes
Changing the 2 seals of the turbos connecting the air boxes (part 13718655216)
Changing the 2 Throttle Housing Assy (part 13547555944)
The whole turbo boost system has been tested with a vaccum gauge. The wastegate moves well.
I use ISTA Rheingold for test my car. A little video of the turbo test :
https://www.youtube.com/watch?v=hXQcTdGmsjQ
Today I exchanged the plug of the pressure converter. The fault is now on boost number 2. With the error : The total charging pressure is too low
Before the plug swap, the fault is : Turbocharger 1 indicates charging pressure fault
A little video of the wastegate with the strange movement :
https://www.youtube.com/watch?v=Fximi6W7dTA
I think its an electrical problem but where ??!! What do you think ?
Thanks for your help
Nyckos
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