diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Strategies/HybridStrategy.cs b/VectoCore/VectoCore/Models/SimulationComponent/Strategies/HybridStrategy.cs
index 0686ff64a4b3aefbf2ed5f0b2b7432b8de6949dd..1ed7b6e9bcceacc0736dd060302397e27cdd0d94 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Strategies/HybridStrategy.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Strategies/HybridStrategy.cs
@@ -665,6 +665,10 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Strategies
 			if (!ModelData.VehicleData.ADAS.EngineStopStart) {
 				return false;
 			}
+			var emPos = ModelData.ElectricMachinesData.First().Item1;
+			if (ModelData.VehicleData.ADAS.EngineStopStart && emPos == PowertrainPosition.HybridP1) {
+				return false;
+			}
 			return PreviousState.ICEStartTStmp == null ||
 					(PreviousState.ICEStartTStmp + StrategyParameters.MinICEOnTime).IsSmaller(absTime);
 		}
diff --git a/VectoCore/VectoCoreTest/TestData/Hybrids/Citybus_P1-APT-P-220kW-7.7l/CityBus_AT-P.vveh b/VectoCore/VectoCoreTest/TestData/Hybrids/Citybus_P1-APT-P-220kW-7.7l/CityBus_AT-P.vveh
index e12de617e79273066fad24ac500379cb1160744f..434bc9f53ac4e7bab87504a75f9550bd42c2bbb3 100644
--- a/VectoCore/VectoCoreTest/TestData/Hybrids/Citybus_P1-APT-P-220kW-7.7l/CityBus_AT-P.vveh
+++ b/VectoCore/VectoCoreTest/TestData/Hybrids/Citybus_P1-APT-P-220kW-7.7l/CityBus_AT-P.vveh
@@ -39,7 +39,7 @@
         }
       ]
     },
-    "EngineStopStart": false,
+    "EngineStopStart": true,
     "EcoRoll": "None",
     "PredictiveCruiseControl": "None",
     "ATEcoRollReleaseLockupClutch": false,