[Stinged]

IsPlayerInAnyVehicle has playerid as parameters. Not vehicle id.
Use this function:

pawn Код:

stock IsVehicleOccupied(vehid)
{
    for( new all = 0; all < MAX_PLAYERS; all++)
    {
        if (IsPlayerInVehicle(all, vehid))
        {
            return 1;
        }
    }
    return 0;
}

Also, try this, maybe it'll work.

pawn Код:

for(new v = 0; v < 25; v++)
{
    if(!IsVehicleOccupied(FacInfo[1][fCars][i]))
    {
        SetVehicleToRespawn(FacInfo[1][fCars][i]);
    }
}