diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs b/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs
index b99b110f89a18fd94265a92995d891740dd7c6dc..99c6052f8810ffbadfea2f6def5b22892dcaea29 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs
@@ -194,8 +194,10 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Data.Gearbox
 		{
 			var torqueLoss = _invertedLossMap.Interpolate(inAngularVelocity.ConvertTo().Rounds.Per.Minute.Value(),
 				inTorque.Value());
+			if (torqueLoss.HasValue)
+				return (inTorque - torqueLoss.Value.SI<NewtonMeter>()) / _ratio;
 
-			if (!torqueLoss.HasValue && allowExtrapolation) {
+			if (allowExtrapolation) {
 				torqueLoss = _invertedLossMap.Extrapolate(inAngularVelocity.ConvertTo().Rounds.Per.Minute.Value(), inTorque.Value());
 				return (inTorque - torqueLoss.Value.SI<NewtonMeter>()) / _ratio;
 			}
diff --git a/VectoCore/VectoCoreTest/Models/SimulationComponentData/FuelConsumptionMapTest.cs b/VectoCore/VectoCoreTest/Models/SimulationComponentData/FuelConsumptionMapTest.cs
index aea37d3ea41ea5bcd69ea20093737020fabe4d76..440bbc14f64d00f39a9a71b26081282e5a1f1d88 100644
--- a/VectoCore/VectoCoreTest/Models/SimulationComponentData/FuelConsumptionMapTest.cs
+++ b/VectoCore/VectoCoreTest/Models/SimulationComponentData/FuelConsumptionMapTest.cs
@@ -29,11 +29,11 @@
 *   Martin Rexeis, rexeis@ivt.tugraz.at, IVT, Graz University of Technology
 */
 
+using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Linq;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using TUGraz.VectoCommon.Exceptions;
 using TUGraz.VectoCommon.Utils;
 using TUGraz.VectoCore.Models.SimulationComponent.Data.Engine;
 
@@ -60,19 +60,13 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponentData
 			AssertMapValuesEqual(lines, map);
 		}
 
-		private static void AssertMapValuesEqual(string[] lines, FuelConsumptionMap map)
+		private static void AssertMapValuesEqual(IReadOnlyList<string> lines, FuelConsumptionMap map)
 		{
-			for (var i = 1; i < lines.Count(); i++) {
+			for (var i = 1; i < lines.Count; i++) {
 				var entry = lines[i].Split(',').Select(x => double.Parse(x, CultureInfo.InvariantCulture)).ToArray();
-				try {
-					Assert.AreEqual(entry[2].SI().Gramm.Per.Hour.ConvertTo().Kilo.Gramm.Per.Second.Value(),
-						map.GetFuelConsumption(entry[1].SI<NewtonMeter>(), entry[0].RPMtoRad()).Value(),
-						Tolerance,
-						string.Format("Line: {0}, n_eng_avg={1}, T={2}", (i + 2), entry[0].SI().Rounds.Per.Minute, entry[1]));
-				} catch (VectoException ex) {
-					throw new VectoException(string.Format("Row {0}: Error in ConsumptionMap n_eng_avg={1}, T={2}: {3}",
-						i + 2, entry[0], entry[1], ex.Message));
-				}
+
+				Assert.AreEqual(entry[2].SI().Gramm.Per.Hour.ConvertTo().Kilo.Gramm.Per.Second.Value(),
+					map.GetFuelConsumption(entry[1].SI<NewtonMeter>(), entry[0].RPMtoRad(), true).Value(), Tolerance);
 			}
 		}
 	}
diff --git a/VectoCore/VectoCoreTest/Utils/DelauneyMapTest.cs b/VectoCore/VectoCoreTest/Utils/DelauneyMapTest.cs
index 745253d6bbc8493b6f34a998ce7a3384d0309ba7..6319a472f2e9ad519c685b0f6a7cc02555a1c132 100644
--- a/VectoCore/VectoCoreTest/Utils/DelauneyMapTest.cs
+++ b/VectoCore/VectoCoreTest/Utils/DelauneyMapTest.cs
@@ -82,10 +82,10 @@ namespace TUGraz.VectoCore.Tests.Utils
 			AssertHelper.AreRelativeEqual(1.5, map.Interpolate(0, 0.75).Value);
 
 			// extrapolation (should fail)
-			AssertHelper.Exception<VectoException>(() => map.Interpolate(1, 1), "TEST: Interpolation failed. x: 1, y: 1");
-			AssertHelper.Exception<VectoException>(() => map.Interpolate(-1, -1), "TEST: Interpolation failed. x: -1, y: -1");
-			AssertHelper.Exception<VectoException>(() => map.Interpolate(1, -1), "TEST: Interpolation failed. x: 1, y: -1");
-			AssertHelper.Exception<VectoException>(() => map.Interpolate(-1, 1), "TEST: Interpolation failed. x: -1, y: 1");
+			Assert.IsNull(map.Interpolate(1, 1));
+			Assert.IsNull(map.Interpolate(-1, -1));
+			Assert.IsNull(map.Interpolate(1, -1));
+			Assert.IsNull(map.Interpolate(-1, 1));
 		}
 
 		public void Test_DelaunayMapPlane()