So Ive recently had an engine conversion done on my Altezza. Had old 3sge engine removed, with another 3sge engine put in with turbo extras. apexi ecu and handcontroller.
The garage who has done it have managed to get it up and running sweet but only when cold. They said it revs up nicely and gets some decent boost until the point of it getting warm. Once the engine has warmed up they said it just dies down and eventually leads to cutting out. They have checked the usual things like plugs coilpacks leads and stuff for moisture.
They did say when they originally turned it over the first time lots of fuel was dumping out exhaust so they reduced the fuel flow with the hand controller then got it running sweet. But like i said that's only when cold. Any advice would be great.