[[WSF]ThA_Devil]

The problem is, the timer is not sending playerid and vehicleid params.
I suggest you doing same
SetTimer("EngineBroke",200,1);
but, changing

Код:

public EngineBroke()
{
for(new i = 0; i<MAX_PLAYERS;i++){
if(IsPlayerConnected(i)){
if(GetPlayerState(i) == PLAYER_STATE_DRIVER) {
new Float:vhealth;
        new veh;
        veh = GetPlayerVehicleID(i);
        GetVehicleHealth(veh, vhealth);
        if(vhealth < 300.0)
        {
            ToggleEngine(veh, VEHICLE_PARAMS_OFF);
        }
}
}
}
}

*Code might be faulty because written in forums without compiler*