diff --git a/firmware/controllers/core/fsio_core.cpp b/firmware/controllers/core/fsio_core.cpp
index 760f5bb13c..134281d921 100644
--- a/firmware/controllers/core/fsio_core.cpp
+++ b/firmware/controllers/core/fsio_core.cpp
@@ -20,7 +20,6 @@
 
 #include "fsio_core.h"
 #include "fsio_impl.h"
-#include "adc_inputs.h"
 
 extern fsio8_Map3D_f32t fsioTable1;
 extern fsio8_Map3D_u8t fsioTable2;
@@ -247,7 +246,8 @@ FsioResult LECalculator::processElement(const LEElement *element DECLARE_ENGINE_
 	case LE_METHOD_FSIO_ANALOG_INPUT:
 	{
 		int index = clampF(0, pop(LE_METHOD_FSIO_ANALOG_INPUT), FSIO_ANALOG_INPUT_COUNT - 1);
-		return getVoltage("fsio", engineConfiguration->fsioAdc[index] PASS_ENGINE_PARAMETER_SUFFIX);
+		int sensorIdx = static_cast<int>(SensorType::Aux1) + index;
+		return Sensor::get(static_cast<SensorType>(sensorIdx));
 	}
 	case LE_METHOD_KNOCK:
 		return ENGINE(knockCount);
diff --git a/firmware/controllers/lua/lua_hooks.cpp b/firmware/controllers/lua/lua_hooks.cpp
index 113367fe63..371a9616ca 100644
--- a/firmware/controllers/lua/lua_hooks.cpp
+++ b/firmware/controllers/lua/lua_hooks.cpp
@@ -69,19 +69,6 @@ static int lua_fan(lua_State* l) {
 	return 1;
 }
 
-static int lua_getAnalog(lua_State* l) {
-	auto idx = luaL_checkinteger(l, 1);
-
-	// Sanitize parameter
-	idx = clampI(0, idx, FSIO_ANALOG_INPUT_COUNT - 1);
-
-	// Do the analog read
-	float voltage = getVoltage("lua", engineConfiguration->fsioAdc[idx]);
-
-	lua_pushnumber(l, voltage);
-	return 1;
-}
-
 static int lua_getDigital(lua_State* l) {
 	auto idx = luaL_checkinteger(l, 1);
 
@@ -132,7 +119,6 @@ void configureRusefiLuaHooks(lua_State* l) {
 
 #if !EFI_UNIT_TEST
 	lua_register(l, "getFan", lua_fan);
-	lua_register(l, "getAnalog", lua_getAnalog);
 	lua_register(l, "getDigital", lua_getDigital);
 	lua_register(l, "setDebug", lua_setDebug);
 #endif
diff --git a/firmware/controllers/sensors/functional_sensor.h b/firmware/controllers/sensors/functional_sensor.h
index 1879c687ab..14606944ba 100644
--- a/firmware/controllers/sensors/functional_sensor.h
+++ b/firmware/controllers/sensors/functional_sensor.h
@@ -25,7 +25,7 @@
  */
 class FunctionalSensor final : public StoredValueSensor {
 public:
-	explicit FunctionalSensor(SensorType type, efitick_t timeoutPeriod)
+	FunctionalSensor(SensorType type, efitick_t timeoutPeriod)
 		: StoredValueSensor(type, timeoutPeriod) { }
 
 	void postRawValue(float inputValue, efitick_t timestamp);
diff --git a/firmware/controllers/sensors/sensor.cpp b/firmware/controllers/sensors/sensor.cpp
index 9263720165..b2379f6a5a 100644
--- a/firmware/controllers/sensors/sensor.cpp
+++ b/firmware/controllers/sensors/sensor.cpp
@@ -47,6 +47,11 @@ static const char* s_sensorNames[] = {
 	"Barometric Pressure",
 
 	"Fuel Level %",
+
+	"Aux 1",
+	"Aux 2",
+	"Aux 3",
+	"Aux 4",
 };
 
 // This struct represents one sensor in the registry.
diff --git a/firmware/controllers/sensors/sensor_type.h b/firmware/controllers/sensors/sensor_type.h
index 1cf4e7c903..37118d0b85 100644
--- a/firmware/controllers/sensors/sensor_type.h
+++ b/firmware/controllers/sensors/sensor_type.h
@@ -68,6 +68,11 @@ enum class SensorType : unsigned char {
 
 	FuelLevel = 29,
 
+	Aux1 = 30,
+	Aux2 = 31,
+	Aux3 = 32,
+	Aux4 = 33,
+
 	// Leave me at the end!
-	PlaceholderLast = 30,
+	PlaceholderLast = 34,
 };
diff --git a/firmware/hw_layer/adc/adc_inputs.cpp b/firmware/hw_layer/adc/adc_inputs.cpp
index 4fdb60c5c8..f09fc00088 100644
--- a/firmware/hw_layer/adc/adc_inputs.cpp
+++ b/firmware/hw_layer/adc/adc_inputs.cpp
@@ -474,10 +474,6 @@ static void configureInputs(void) {
 		addChannel("CJ125 UA", engineConfiguration->cj125ua, ADC_SLOW);
 	}
 
-	for (int i = 0; i < FSIO_ANALOG_INPUT_COUNT ; i++) {
-		addChannel("FSIOadc", engineConfiguration->fsioAdc[i], ADC_SLOW);
-	}
-
 	setAdcChannelOverrides();
 }
 
diff --git a/firmware/init/init.h b/firmware/init/init.h
index 07b358df4e..6bda9b0b32 100644
--- a/firmware/init/init.h
+++ b/firmware/init/init.h
@@ -27,6 +27,7 @@ void initLambda(DECLARE_ENGINE_PARAMETER_SIGNATURE);
 void initFlexSensor(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 void initFuelLevel(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 void initBaro(DECLARE_CONFIG_PARAMETER_SIGNATURE);
+void initAuxSensors(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 
 // Sensor reconfiguration
 void reconfigureVbatt(DECLARE_CONFIG_PARAMETER_SIGNATURE);
diff --git a/firmware/init/init.mk b/firmware/init/init.mk
index 8c2211b4f7..3c569b294c 100644
--- a/firmware/init/init.mk
+++ b/firmware/init/init.mk
@@ -10,3 +10,4 @@ INIT_SRC_CPP =	$(PROJECT_DIR)/init/sensor/init_sensors.cpp \
 				$(PROJECT_DIR)/init/sensor/init_vbatt.cpp \
 				$(PROJECT_DIR)/init/sensor/init_baro.cpp \
 				$(PROJECT_DIR)/init/sensor/init_fuel_level.cpp \
+				$(PROJECT_DIR)/init/sensor/init_aux.cpp \
diff --git a/firmware/init/sensor/init_aux.cpp b/firmware/init/sensor/init_aux.cpp
new file mode 100644
index 0000000000..5c6ebd7c29
--- /dev/null
+++ b/firmware/init/sensor/init_aux.cpp
@@ -0,0 +1,43 @@
+#include "init.h"
+#include "adc_inputs.h"
+#include "adc_subscription.h"
+#include "engine.h"
+#include "global.h"
+#include "functional_sensor.h"
+
+EXTERN_ENGINE;
+
+// These aux sensors just read voltage - so the converter function has nothing to do
+struct IdentityFunction : public SensorConverter {
+	SensorResult convert(float raw) const {
+		return raw;
+	}
+};
+
+static IdentityFunction func;
+
+static FunctionalSensor auxSensors[] = {
+	{ SensorType::Aux1, MS2NT(50) },
+	{ SensorType::Aux2, MS2NT(50) },
+	{ SensorType::Aux3, MS2NT(50) },
+	{ SensorType::Aux4, MS2NT(50) },
+};
+
+static_assert(efi::size(auxSensors) == FSIO_ANALOG_INPUT_COUNT);
+
+void initAuxSensors(DECLARE_CONFIG_PARAMETER_SIGNATURE) {
+	for (size_t i = 0; i < efi::size(CONFIG(fsioAdc)); i++) {
+		auto channel = CONFIG(fsioAdc)[i];
+
+		// Skip unconfigured channels
+		if (!isAdcChannelValid(channel)) {
+			continue;
+		}
+
+		auto& sensor = auxSensors[i];
+		sensor.setFunction(func);
+		sensor.Register();
+
+		AdcSubscription::SubscribeSensor(sensor, channel, 10);
+	}
+}
diff --git a/firmware/init/sensor/init_sensors.cpp b/firmware/init/sensor/init_sensors.cpp
index 92d3d2e639..1550a6b988 100644
--- a/firmware/init/sensor/init_sensors.cpp
+++ b/firmware/init/sensor/init_sensors.cpp
@@ -21,6 +21,7 @@ void initNewSensors(DECLARE_ENGINE_PARAMETER_SIGNATURE) {
 	initLambda(PASS_ENGINE_PARAMETER_SIGNATURE);
 	initFlexSensor(PASS_CONFIG_PARAMETER_SIGNATURE);
 	initBaro(PASS_CONFIG_PARAMETER_SIGNATURE);
+	initAuxSensors(PASS_CONFIG_PARAMETER_SIGNATURE);
 
 	#if !EFI_UNIT_TEST
 		initFuelLevel(PASS_CONFIG_PARAMETER_SIGNATURE);