[Corsa B 1993-2000] 1.5 turbo diesel engine

[corsakid]

I need to know wat size my oil breather pipe is that is connected to my air filter pipe to the top of my engine

[Dave]

Not sure, the GM Software doesnt give its diameter, it does give the size of the clamps for it though, which are said to be "19mm ID" so the ID of the hose will be a bit less than that I'd imagine.