Hello,
I've noticed since replacing the leaky intercooler on my R that the boost levels fluctuate between 12-16psi. It's quite strange as at first it peaked at 14 then instantly dropped to 12psi. It now seems to hold higher boost but sometimes fluctuates up and down but there is no noticeable reduction in power. But it held 16psi all through 3rd once and it pulled very very strong!
I have a MBC in the boot so I may stich that on to see if it can hold constant PSI which may point to a faulty BCV.
Any other ideas before I do this? Never really been a fan on those things.
Thanks
EDIT- I should add that it has a Forge wastegate fitted!
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