Thanks, emissions have been tested, as has the exhaust but will follow up on the mainfold. Will let you know how it goes.

Our 2000 reg Bongo looks great in every way except it is really slow to pull off, it just has no power. Taken it to garage twice now and the diagnostics have been done but nothing wrong can be found. Changed fuel filter, checked compression but nothing is coming to light. Has anyone had a similar ...