Hello. I have a Toyota Lancrusier j100 4.7 v8 2002 facelift. I have a problem when I start it on the instrument panel, the rmp are at 6000, but the engine is fine. it only shows from 6000 rmp. as if 6000 rmp are idle rmp. is the problem somewhere in the instrument panel? how can it be fixed? thank you for everything.