diff --git a/firmware/controllers/algo/event_registry.cpp b/firmware/controllers/algo/event_registry.cpp
index 354486f74d..7db0bb94b2 100644
--- a/firmware/controllers/algo/event_registry.cpp
+++ b/firmware/controllers/algo/event_registry.cpp
@@ -27,7 +27,6 @@
 InjectionEvent::InjectionEvent() {
 	isSimultanious = false;
 	isOverlapping = false;
-	injectorIndex = 0;
 	output = NULL;
 }
 
diff --git a/firmware/controllers/algo/event_registry.h b/firmware/controllers/algo/event_registry.h
index 25b8b01549..5000c0a32c 100644
--- a/firmware/controllers/algo/event_registry.h
+++ b/firmware/controllers/algo/event_registry.h
@@ -38,7 +38,6 @@ public:
 	 */
 	bool isSimultanious;
 	InjectorOutputPin *output;
-	int injectorIndex;
 	bool isOverlapping;
 
 	event_trigger_position_s injectionStart;
diff --git a/firmware/controllers/algo/signal_executor.cpp b/firmware/controllers/algo/signal_executor.cpp
index bc3a9a8536..31f8ee8e7b 100644
--- a/firmware/controllers/algo/signal_executor.cpp
+++ b/firmware/controllers/algo/signal_executor.cpp
@@ -43,7 +43,7 @@ extern WaveChart waveChart;
 
 OutputSignalPair::OutputSignalPair() {
 	isScheduled = false;
-	output = NULL;
+	memset(outputs, 0, sizeof(outputs));
 }
 
 void initSignalExecutor(void) {
diff --git a/firmware/controllers/algo/signal_executor.h b/firmware/controllers/algo/signal_executor.h
index 7f513cd6f2..b70fb91f93 100644
--- a/firmware/controllers/algo/signal_executor.h
+++ b/firmware/controllers/algo/signal_executor.h
@@ -24,6 +24,8 @@
 #include "signal_executor_sleep.h"
 #endif /* EFI_SIGNAL_EXECUTOR_SLEEP */
 
+#define MAX_WIRES_COUNT 2
+
 class OutputSignalPair {
 public:
 	OutputSignalPair();
@@ -38,7 +40,7 @@ public:
 	 * TODO: make watchdog decrement relevant counter
 	 */
 	bool isScheduled;
-	InjectorOutputPin *output;
+	InjectorOutputPin *outputs[MAX_WIRES_COUNT];
 };
 
 /**
diff --git a/firmware/controllers/math/engine_math.cpp b/firmware/controllers/math/engine_math.cpp
index 4a05292bce..9e7dc9631e 100644
--- a/firmware/controllers/math/engine_math.cpp
+++ b/firmware/controllers/math/engine_math.cpp
@@ -111,7 +111,6 @@ void FuelSchedule::registerInjectionEvent(int injectorIndex, float angle, angle_
 	fixAngle(angle);
 	ev->isOverlapping = angle < 720 && (angle + injectionDuration) > 720;
 
-	ev->injectorIndex = injectorIndex;
 	ev->output = output;
 
 	ev->isSimultanious = isSimultanious;
diff --git a/firmware/controllers/system/efiGpio.cpp b/firmware/controllers/system/efiGpio.cpp
index da0740b756..34ff9d1440 100644
--- a/firmware/controllers/system/efiGpio.cpp
+++ b/firmware/controllers/system/efiGpio.cpp
@@ -29,6 +29,7 @@ NamedOutputPin::NamedOutputPin(const char *name) : OutputPin() {
 
 InjectorOutputPin::InjectorOutputPin() : NamedOutputPin() {
 	reset();
+	injectorIndex = -1;
 }
 
 static const char *sparkNames[IGNITION_PIN_COUNT] = { "c1", "c2", "c3", "c4", "c5", "c6", "c7", "c8",
@@ -46,6 +47,7 @@ EnginePins::EnginePins() {
 		enginePins.coils[i].name = sparkNames[i];
 	}
 	for (int i = 0; i < INJECTION_PIN_COUNT;i++) {
+		enginePins.injectors[i].injectorIndex = i;
 		enginePins.injectors[i].name = injectorNames[i];
 	}
 }
diff --git a/firmware/controllers/system/efiGpio.h b/firmware/controllers/system/efiGpio.h
index bf31c625c2..538890d461 100644
--- a/firmware/controllers/system/efiGpio.h
+++ b/firmware/controllers/system/efiGpio.h
@@ -56,6 +56,7 @@ public:
 	InjectorOutputPin();
 	void reset();
 	efitimeus_t overlappingScheduleOffTime;
+	int injectorIndex;
 	bool cancelNextTurningInjectorOff;
 	int overlappingCounter;
 };
diff --git a/firmware/controllers/trigger/main_trigger_callback.cpp b/firmware/controllers/trigger/main_trigger_callback.cpp
index b465170198..254bda02c8 100644
--- a/firmware/controllers/trigger/main_trigger_callback.cpp
+++ b/firmware/controllers/trigger/main_trigger_callback.cpp
@@ -87,9 +87,7 @@ static void endSimultaniousInjection(Engine *engine) {
 	}
 }
 
-// todo: make these macro? kind of a penny optimization if compiler is not smart to inline
-void seTurnPinHigh(OutputSignalPair *pair) {
-	InjectorOutputPin *output = pair->output;
+static void tempTurnPinHigh(InjectorOutputPin *output) {
 	output->overlappingCounter++;
 
 #if FUEL_MATH_EXTREME_LOGGING || defined(__DOXYGEN__)
@@ -121,9 +119,13 @@ void seTurnPinHigh(OutputSignalPair *pair) {
 	turnPinHigh(output);
 }
 
-void seTurnPinLow(OutputSignalPair *pair) {
-	pair->isScheduled = false;
-	InjectorOutputPin *output = pair->output;
+// todo: make these macro? kind of a penny optimization if compiler is not smart to inline
+void seTurnPinHigh(OutputSignalPair *pair) {
+	InjectorOutputPin *output = pair->outputs[0];
+	tempTurnPinHigh(output);
+}
+
+static void tempTurnPinLow(InjectorOutputPin *output) {
 #if FUEL_MATH_EXTREME_LOGGING || defined(__DOXYGEN__)
 	printf("seTurnPinLow %s %d %d\r\n", output->name, output->overlappingCounter, (int)getTimeNowUs());
 #endif /* FUEL_MATH_EXTREME_LOGGING */
@@ -162,8 +164,14 @@ void seTurnPinLow(OutputSignalPair *pair) {
 	turnPinLow(output);
 }
 
+void seTurnPinLow(OutputSignalPair *pair) {
+	pair->isScheduled = false;
+	InjectorOutputPin *output = pair->outputs[0];
+	tempTurnPinLow(output);
+}
+
 static void seScheduleByTime(const char *prefix, scheduling_s *scheduling, efitimeus_t time, schfunc_t callback, OutputSignalPair *pair) {
-	InjectorOutputPin *param = pair->output;
+	InjectorOutputPin *param = pair->outputs[0];
 #if FUEL_MATH_EXTREME_LOGGING || defined(__DOXYGEN__)
 //	scheduleMsg(&sharedLogger, "schX %s %x %d", prefix, scheduling,	time);
 //	scheduleMsg(&sharedLogger, "schX %s", param->name);
@@ -200,7 +208,7 @@ static void scheduleFuelInjection(int rpm, OutputSignal *signal, efitimeus_t now
 #endif /* EFI_UNIT_TEST || EFI_SIMULATOR */
 		return; // this OutputSignalPair is still needed for an extremely long injection scheduled previously
 	}
-	pair->output = output;
+	pair->outputs[0] = output;
 	scheduling_s * sUp = &pair->signalTimerUp;
 	scheduling_s * sDown = &pair->signalTimerDown;
 
@@ -229,7 +237,7 @@ static ALWAYS_INLINE void handleFuelInjectionEvent(int injEventIndex, InjectionE
 	 * wetting coefficient works the same way for any injection mode, or is something
 	 * x2 or /2?
 	 */
-	const floatms_t injectionDuration = ENGINE(wallFuel).adjust(event->injectorIndex, ENGINE(fuelMs) PASS_ENGINE_PARAMETER);
+	const floatms_t injectionDuration = ENGINE(wallFuel).adjust(event->output->injectorIndex, ENGINE(fuelMs) PASS_ENGINE_PARAMETER);
 #if EFI_PRINTF_FUEL_DETAILS || defined(__DOXYGEN__)
 	printf("fuel fuelMs=%f adjusted=%f\t\n", ENGINE(fuelMs), injectionDuration);
 #endif /*EFI_PRINTF_FUEL_DETAILS */
@@ -332,7 +340,7 @@ static void scheduleOutput2(OutputSignalPair *pair, efitimeus_t nowUs, float del
 	pair->isScheduled = true;
 	scheduling_s *sDown = &pair->signalTimerDown;
 
-	pair->output = output;
+	pair->outputs[0] = output;
 	seScheduleByTime("out up2", sUp, turnOnTime, (schfunc_t) &seTurnPinHigh, pair);
 	efitimeus_t turnOffTime = nowUs + (int) (delayUs + durationUs);
 
@@ -352,7 +360,7 @@ static void handleFuelScheduleOverlap(InjectionEventList *injectionEvents DECLAR
 		if (!engine->engineConfiguration2->wasOverlapping[injEventIndex] && event->isOverlapping) {
 			// we are here if new fuel schedule is crossing engine cycle boundary with this event
 
-			InjectorOutputPin *output = &enginePins.injectors[event->injectorIndex];
+			InjectorOutputPin *output = event->output;
 
 			// todo: recalc fuel? account for wetting?
 			floatms_t injectionDuration = ENGINE(fuelMs);
diff --git a/unit_tests/test_trigger_decoder.cpp b/unit_tests/test_trigger_decoder.cpp
index c6a4b08a15..ce8cdf8ac7 100644
--- a/unit_tests/test_trigger_decoder.cpp
+++ b/unit_tests/test_trigger_decoder.cpp
@@ -588,7 +588,7 @@ void assertEvent(const char *msg, int index, void *callback, efitime_t start, ef
 	assertEqualsM4(msg, "up/down", (void*)ev->callback == (void*) callback, 1);
 	assertEqualsM(msg, momentX, ev->momentX - start);
 	OutputSignalPair *pair = (OutputSignalPair *)ev->param;
-	assertEqualsLM(msg, param, (long)pair->output);
+	assertEqualsLM(msg, param, (long)pair->outputs[0]);
 }
 
 void assertInjectorUpEvent(const char *msg, int eventIndex, efitime_t momentX, long injectorIndex) {
@@ -600,7 +600,7 @@ void assertInjectorDownEvent(const char *msg, int eventIndex, efitime_t momentX,
 }
 
 static void assertInjectionEvent(const char *msg, InjectionEvent *ev, int injectorIndex, int eventIndex, angle_t angleOffset, bool isOverlapping) {
-	assertEqualsM4(msg, "inj index", injectorIndex, ev->injectorIndex);
+	assertEqualsM4(msg, "inj index", injectorIndex, ev->output->injectorIndex);
 	assertEqualsM4(msg, " event index", eventIndex, ev->injectionStart.eventIndex);
 	assertEqualsM4(msg, " event offset", angleOffset, ev->injectionStart.angleOffset);
 	assertTrueM("is overlapping", isOverlapping == ev->isOverlapping);