1st, oil leaking down next to right turbo, and smokes when hot, it is either oil feed pipe or rocker cover, how hard is it to take the inlet off?

 

2nd, there is hesitation when you floor it, it has full boost but tends to stutter. Any ideas what that could be, spark plugs are fine, new pressure regulator and PTU.

The oil feed pipes are all metal and very unlikely to come loose and leak.

I had a leaky rocker cover on my old engine doing this but never fixed it before I swapped engines.

 

Not too sure on the stuttering, there's a few things could cause it.

Sometimes mine smokes after flooring it.. Someone suggested to me that the crank rear seal could be leaking under high load as I never see any oil on the drive, only smoke rising from the back of the engine and from the first section of the exhaust after the downpipes. Im told its a big job to replace the seal.. This may help!

 

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