Something

	//Put this under OnPlayerCommandText
	if(strcmp(cmd, "/fixveh", true) == 0)
	{
		tmp = strtok(cmdtext, idx);
		if(!strlen(tmp))
		{
			SendClientMessage(playerid, COLOR_GRAD2, "USAGE: /fixveh [playerid/PartOfName]");
			SendClientMessage(playerid, COLOR_GRAD1, "FUNCTION: Will fix a players vehicle.");
			return 1;
		}
		new playa;

		playa = ReturnUser(tmp);
		tmp = strtok(cmdtext,idx);
		if(IsPlayerConnected(playa))
  		{
			if(IsPlayerInAnyVehicle(playa))
			{
				SetVehicleHealth(GetPlayerVehicleID(playerid), 1000.0);
 				SendClientMessage(playerid, COLOR_GREY, "Vehicle Fixed");
				return 1;
			}
		}
		//Add if player is admin here.
		{
			SendClientMessage(playerid, COLOR_GRAD1, "You are not authorized to use that command");
			return 1;
		}
		return 1;
	}
	return 1;
	//Feel free to edit as you wish. - Regards Tom.