155 Q4: From Switzerland to Scotland

[Ade]

Would wrapping it not being the easiest idea?

And back to my car... Good news! It seems the drivetrain issues are nothing more than a knackered slave cylinder!

Boost cut issue appears to be more complicated though.... initial diagnosis is a boost leak after the MAP sensor. Apparently it's massively over fueling at high boost at the moment for some reason too.... Soon see what happens!

[WhizzMan]

Would wrapping it not being the easiest idea?

And back to my car... Good news! It seems the drivetrain issues are nothing more than a knackered slave cylinder!

Boost cut issue appears to be more complicated though.... initial diagnosis is a boost leak after the MAP sensor. Apparently it's massively over fueling at high boost at the moment for some reason too.... Soon see what happens!

Wrapping would work too, but is a less permanent solution than ceramic coating. I think all 3 solutions have their merit and may work well combined. Not shielding the manifold will cook the oil and coolant in your cylinder head at the exhaust side. Needless to say, that will not be beneficial to the engine.

Good to hear that your clutch cylinder will most likely be the only problem in your drive line.

Regarding the over-fueling. Since you have an aftermarket boost controller and who knows what chip in there, I would recommend you go back to a stock setup, just to see if that cures the problem. If it doesn't, you have the unknown factors out of the problem and you can do a "traditional" fault diagnosis. Once everything is okay, you can put the boost controller and chip back in.

[Q4Jan]

I indeed have a spare manifold laying around.
Probably one of the last ones.