[Abreezy]

pawn Код:

SetTimer("SpeedoUpdate",300,1);
    SetTimer("FuelUpdate",20000,1);
    SetTimer("FuelSave", 4000, 1);

Make those timers like this one:

pawn Код:

SetTimerEx("EngineOn", 3000, false, "i", playerid);

Which is basically what person above me said.