Hello, Problem 1) has the problem most often during on/off-coupling and almost always when I drive backwards, the speed drops up to 500 and itself goes up again. In idle the engine works normal. 1.6 Zetec E 9 Ps Year of manufacture 97 HAVE already changed the crankshaft… valve, corner hose, empty running switch and the throttle valve ruptured. What else can it be ?? Problem 2) The other problem, I noticed that sometimes on the highway when I give gas so at 120km/h he don’t drive faster and then I push the gas pedals completely and then it goes very slowly faster. After a few minutes it is gone and then it is splashy again. Is it maybe the LMM ?? THANK YOU