[POMOC] Motor se pokvario

Skripta moja
Opis problema : Evo ovako,CheckCarHealth uopste se ne aktivira,kad dodje do 600hp vozim normalno ne pokvari se

//FORWARD
forward CheckCarHealth();

//News
new checkcarhealthtimer;

//KillerTimer
KillTimer(checkcarhealthtimer);

//Timer
checkcarhealthtimer = SetTimer("CheckCarHealth", 5000, 1);//gilera

//Public

public CheckCarHealth()
{
    new string;
    new sendername;
    for (new i=0; i < MAX_PLAYERS; i++)
    {
        if (IsPlayerConnected(i) && IsPlayerInAnyVehicle(i) && GetPlayerState(i) == PLAYER_STATE_DRIVER)
        {
            new Float:health;
            GetVehicleHealth(GetPlayerVehicleID(i),health);
            new newcar = GetPlayerVehicleID(i);
            if (health <= 600 && !IsABoat(newcar) && !IsABike(newcar) && !IsAnOwnableCar(newcar) && !IsAPlane(newcar) && !IsAHarvest(newcar) && !IsADrugHarvest(newcar) && !IsASweeper(newcar) && !IsARaceCar(newcar))
            {
                if(engineOn[GetPlayerVehicleID(i)] == 1)
                {
                    if(GetPlayerState(i) == PLAYER_STATE_DRIVER)
                    {
                		SendClientMessage(i, COLOR_LIGHT_BLUE, "Pokvario vam se motor, probajte opet da ga upalite ili zovite mehanicara! (/exit da izadjete)");
                		engineOn[GetPlayerVehicleID(i)] = false;
                		GetPlayerName(i, sendername, sizeof(sendername));
                		format(string, sizeof(string), "* Motor se pokvario... (( %s ))", sendername);
						ProxDetector(30.0, i, string, COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPLE);
					}
				 }
            }
        }
    }
}