diff --git a/firmware/controllers/trigger/decoders/trigger_structure.cpp b/firmware/controllers/trigger/decoders/trigger_structure.cpp
index 7834f1e1b0..a04b72ef2a 100644
--- a/firmware/controllers/trigger/decoders/trigger_structure.cpp
+++ b/firmware/controllers/trigger/decoders/trigger_structure.cpp
@@ -96,7 +96,6 @@ void TriggerWaveform::initialize(operation_mode_e operationMode) {
 	memset(expectedEventCount, 0, sizeof(expectedEventCount));
 	wave.reset();
 	previousAngle = 0;
-	memset(riseOnlyIndexes, 0, sizeof(riseOnlyIndexes));
 	memset(isRiseEvent, 0, sizeof(isRiseEvent));
 #if EFI_UNIT_TEST
 	memset(&triggerSignals, 0, sizeof(triggerSignals));
diff --git a/firmware/controllers/trigger/decoders/trigger_structure.h b/firmware/controllers/trigger/decoders/trigger_structure.h
index fbc5c42d64..29e27fcbb8 100644
--- a/firmware/controllers/trigger/decoders/trigger_structure.h
+++ b/firmware/controllers/trigger/decoders/trigger_structure.h
@@ -198,11 +198,6 @@ public:
 	pin_state_t initialState[PWM_PHASE_MAX_WAVE_PER_PWM];
 
 	bool isRiseEvent[PWM_PHASE_MAX_COUNT];
-	/**
-	 * this table translates trigger definition index into 'front-only' index. This translation is not so trivial
-	 * in case of a multi-channel signal with overlapping waves, for example Ford Aspire/Mitsubishi
-	 */
-	int riseOnlyIndexes[PWM_PHASE_MAX_COUNT];
 
 	/**
 	 * This is a pretty questionable option which is considered by 'addEvent' method
diff --git a/firmware/controllers/trigger/trigger_decoder.cpp b/firmware/controllers/trigger/trigger_decoder.cpp
index 29d65ac398..7353ffe9dc 100644
--- a/firmware/controllers/trigger/trigger_decoder.cpp
+++ b/firmware/controllers/trigger/trigger_decoder.cpp
@@ -145,7 +145,6 @@ void calculateTriggerSynchPoint(TriggerWaveform *shape, TriggerState *state DECL
 			shape->eventAngles[0] = 0;
 			// this value would be used in case of front-only
 			shape->eventAngles[1] = 0;
-			shape->riseOnlyIndexes[0] = 0;
 		} else {
 			assertAngleRange(shape->triggerShapeSynchPointIndex, "triggerShapeSynchPointIndex", CUSTOM_TRIGGER_SYNC_ANGLE2);
 			unsigned int triggerDefinitionCoordinate = (shape->triggerShapeSynchPointIndex + eventIndex) % engine->engineCycleEventCount;
@@ -163,8 +162,6 @@ void calculateTriggerSynchPoint(TriggerWaveform *shape, TriggerState *state DECL
 			} else {
 				shape->eventAngles[eventIndex] = angle;
 			}
-
-			shape->riseOnlyIndexes[eventIndex] = riseOnlyIndex;
 		}
 	}
 }