diff --git a/firmware/controllers/algo/aux_pid.cpp b/firmware/controllers/algo/aux_pid.cpp
index dc146ae722..220e1266fd 100644
--- a/firmware/controllers/algo/aux_pid.cpp
+++ b/firmware/controllers/algo/aux_pid.cpp
@@ -6,8 +6,10 @@
  */
 
 #include "aux_pid.h"
+#include "LocalVersionHolder.h"
 
 #if EFI_AUX_PID || defined(__DOXYGEN__)
+#include "pwm_generator.h"
 
 EXTERN_ENGINE
 ;
@@ -17,6 +19,12 @@ EXTERN_ENGINE
 
 static THD_WORKING_AREA(auxPidThreadStack, UTILITY_THREAD_STACK_SIZE);
 
+static LocalVersionHolder parametersVersion;
+static SimplePwm auxPid1;
+static OutputPin auxPid1Pin;
+static pid_s *altPidS = &persistentState.persistentConfiguration.engineConfiguration.alternatorControl;
+static Pid altPid(altPidS, 1, 90);
+
 static msg_t auxPidThread(int param) {
 	UNUSED(param);
 		chRegSetThreadName("AuxPidController");
@@ -24,6 +32,10 @@ static msg_t auxPidThread(int param) {
 			int dt = maxI(10, engineConfiguration->auxPid1DT);
 			chThdSleepMilliseconds(dt);
 
+			if (parametersVersion.isOld())
+				altPid.reset();
+
+
 
 		}
 #if defined __GNUC__
@@ -35,6 +47,17 @@ void initAuxPid(Logging *sharedLogger) {
 	chThdCreateStatic(auxPidThreadStack, sizeof(auxPidThreadStack), LOWPRIO,
 			(tfunc_t) auxPidThread, NULL);
 
+	if (engineConfiguration->activateAuxPid1) {
+		return;
+	}
+
+	if (boardConfiguration->fsioPins[0] == GPIO_UNASSIGNED) {
+		return;
+	}
+
+	startSimplePwmExt(&auxPid1, "Aux PID", boardConfiguration->fsioPins[0],
+			&auxPid1Pin,
+			boardConfiguration->fsioFrequency[0], 0.1, applyPinState);
 }
 
 #endif
diff --git a/firmware/controllers/core/table_helper.h b/firmware/controllers/core/table_helper.h
index c1e1d0359f..7b5db80b6c 100644
--- a/firmware/controllers/core/table_helper.h
+++ b/firmware/controllers/core/table_helper.h
@@ -19,6 +19,8 @@ template<int RPM_BIN_SIZE, int LOAD_BIN_SIZE, typename vType>
 class Map3D {
 public:
 	Map3D(const char*name);
+	Map3D(const char*name, float multiplier);
+	void create(const char*name, float multiplier);
 	void init(vType table[RPM_BIN_SIZE][LOAD_BIN_SIZE], float loadBins[LOAD_BIN_SIZE], float rpmBins[RPM_BIN_SIZE]);
 	float getValue(float xRpm, float y);
 	void setAll(vType value);
@@ -28,6 +30,7 @@ private:
 	float *rpmBins;
 	bool initialized;
 	const char *name;
+	float multiplier;
 };
 
 template<int SIZE>
@@ -90,12 +93,23 @@ float Map3D<RPM_BIN_SIZE, LOAD_BIN_SIZE, vType>::getValue(float xRpm, float y) {
 		return NAN;
 	}
 	// todo: we have a bit of a mess: in TunerStudio, RPM is X-axis
-	return interpolate3d<vType>(y, loadBins, LOAD_BIN_SIZE, xRpm, rpmBins, RPM_BIN_SIZE, pointers);
+	return multiplier * interpolate3d<vType>(y, loadBins, LOAD_BIN_SIZE, xRpm, rpmBins, RPM_BIN_SIZE, pointers);
 }
 
 template<int RPM_BIN_SIZE, int LOAD_BIN_SIZE, typename vType>
 Map3D<RPM_BIN_SIZE, LOAD_BIN_SIZE, vType>::Map3D(const char *name) {
+	create(name, 1);
+}
+
+template<int RPM_BIN_SIZE, int LOAD_BIN_SIZE, typename vType>
+Map3D<RPM_BIN_SIZE, LOAD_BIN_SIZE, vType>::Map3D(const char *name, float multiplier) {
+	create(name, multiplier);
+}
+
+template<int RPM_BIN_SIZE, int LOAD_BIN_SIZE, typename vType>
+void Map3D<RPM_BIN_SIZE, LOAD_BIN_SIZE, vType>::create(const char *name, float multiplier) {
 	this->name = name;
+	this->multiplier = multiplier;
 	initialized = false;
 	memset(&pointers, 0, sizeof(pointers));
 	loadBins = NULL;
@@ -107,7 +121,7 @@ void Map3D<RPM_BIN_SIZE, LOAD_BIN_SIZE, vType>::setAll(vType value) {
 	efiAssertVoid(initialized, "map not initialized");
 	for (int l = 0; l < LOAD_BIN_SIZE; l++) {
 		for (int r = 0; r < RPM_BIN_SIZE; r++) {
-			pointers[l][r] = value;
+			pointers[l][r] = value / multiplier;
 		}
 	}
 }
diff --git a/firmware/rusefi.cpp b/firmware/rusefi.cpp
index 02223d6d17..5d5b8e2b87 100644
--- a/firmware/rusefi.cpp
+++ b/firmware/rusefi.cpp
@@ -289,7 +289,7 @@ void firmwareError(const char *errorMsg, ...) {
 	}
 }
 
-static char UNUSED_RAM_SIZE[200];
+static char UNUSED_RAM_SIZE[100];
 
 static char UNUSED_CCM_SIZE[3600] CCM_OPTIONAL;
 
diff --git a/firmware/tunerstudio/rusefi.ini b/firmware/tunerstudio/rusefi.ini
index 06c03b7965..e54bdf7e99 100644
--- a/firmware/tunerstudio/rusefi.ini
+++ b/firmware/tunerstudio/rusefi.ini
@@ -1624,6 +1624,7 @@ cmd_test_idle_valve          = "w\x00\x17\x00\x01"
 	dialog = auxPidDialog, "Aux PID"
 		field = "Enabled",								activateAuxPid1
 		field = "FSIO pin #1",							fsioPins1
+		field = "PWM Frequency",						fsioFrequency1
 		field = "#target based on FSIO map#1"
 		field = "control period",						auxPid1DT, {activateAuxPid1 == 1}
 		field = "#PID control"