compression leak, either the injector seal, leaky valve seal, trubo pod leak, vaccum etc etc.
basic start - compression test wet & dry reading will ascertain where to start from.
Since Sept 2017 All IMC 3 SHOPS are alerted not to undertake grey import repairs. They may scan and provide reports & parts requirement but will not undertake repairs, for lack of parts support for so many grey variants.
your truck engine coupled to optional TRD super charger is next level test for local toyota guys.