diff --git a/VectoCore/Models/SimulationComponent/Data/Engine/FuelConsumptionMap.cs b/VectoCore/Models/SimulationComponent/Data/Engine/FuelConsumptionMap.cs
index a0a461d835a5000c8420e892181c11a778a84789..64bb14330ac052c23f5bfcc33294fd6d62ec63fb 100644
--- a/VectoCore/Models/SimulationComponent/Data/Engine/FuelConsumptionMap.cs
+++ b/VectoCore/Models/SimulationComponent/Data/Engine/FuelConsumptionMap.cs
@@ -1,4 +1,5 @@
-using System.IO;
+using System;
+using System.IO;
 
 namespace TUGraz.VectoCore.Models.SimulationComponent.Data.Engine
 {
@@ -12,6 +13,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Data.Engine
         public static FuelConsumptionMap ReadFromJson(string json)
         {
             //todo implement ReadFromJson
+            throw new NotImplementedException();
             return new FuelConsumptionMap();
         }
     }
diff --git a/VectoCore/Models/SimulationComponent/Data/Engine/FullLoadCurve.cs b/VectoCore/Models/SimulationComponent/Data/Engine/FullLoadCurve.cs
index 9874ef5c2ca66a4e4fc46c6cd63efc9908de9848..c245c3f1f3c18db64640874af27aeb90610b382c 100644
--- a/VectoCore/Models/SimulationComponent/Data/Engine/FullLoadCurve.cs
+++ b/VectoCore/Models/SimulationComponent/Data/Engine/FullLoadCurve.cs
@@ -18,6 +18,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Data.Engine
 	    public static FullLoadCurve ReadFromJson(string json)
 	    {
             //todo: implement ReadFromJson
+            throw new NotImplementedException();
 	        return new FullLoadCurve();
 	    }