You need one of these like I used on my Escos below:



I had a good friend of mine make it up for me, you'll need a lot of air to keep it all pressurised for any duration - I have a 50l compressor.

Very handy for leak detection and fixing - some of the leaks I had were like howling gales. Worryingly two were from failed / nicked injector seals, and one was from a Samco hose joiner that wasn't that well installed.

I now only have very minor leaks from a couple of bolts on my plenum, which just need some thread sealer on them.

Use a squirty bottle with washing up liquid and water in it, and spray around everything linked to the inlet side - plenum, TB, Inlet manifold and boost pipework to help to find the leaks.

Si