diff --git a/firmware/config/engines/dodge_neon.cpp b/firmware/config/engines/dodge_neon.cpp
index 9ba8815fab..3069fa258b 100644
--- a/firmware/config/engines/dodge_neon.cpp
+++ b/firmware/config/engines/dodge_neon.cpp
@@ -371,7 +371,7 @@ void setDodgeNeonNGCEngineConfiguration(engine_configuration_s *engineConfigurat
 	 * set_fsio_setting 0 0.11
 	 */
 	engineConfiguration->bc.fsio_setting[0] = 0.2;
-#if EFI_HIP_9011 || defined(__DOXYGEN__)
+#if EFI_FSIO || defined(__DOXYGEN__)
 	boardConfiguration->fsio_setting[0] = 0.55;
 	setFsioExt(engineConfiguration, 0, GPIOE_5, "0 fsio_setting", 400);
 #endif
diff --git a/firmware/controllers/algo/engine.cpp b/firmware/controllers/algo/engine.cpp
index 75904a0827..913d014291 100644
--- a/firmware/controllers/algo/engine.cpp
+++ b/firmware/controllers/algo/engine.cpp
@@ -61,6 +61,17 @@ Engine::Engine() {
 	isRunningPwmTest = false;
 	isTestMode = false;
 	isSpinning = false;
+	adcToVoltageInputDividerCoefficient = NAN;
+	engineConfiguration = NULL;
+	engineConfiguration2 = NULL;
+	engineState.iat = engineState.clt = NAN;
+	memset(&ignitionPin, 0, sizeof(ignitionPin));
+
+	iat.config = NULL;
+	iat.channel = EFI_ADC_NONE;
+
+	clt.config = NULL;
+	clt.channel = EFI_ADC_NONE;
 
 	injectorLagMs = advance = dwellAngle = fuelMs = 0;
 	clutchDownState = clutchUpState = false;
diff --git a/firmware/controllers/algo/fuel_math.cpp b/firmware/controllers/algo/fuel_math.cpp
index 98f84a32cb..c3adf3b1ba 100644
--- a/firmware/controllers/algo/fuel_math.cpp
+++ b/firmware/controllers/algo/fuel_math.cpp
@@ -41,7 +41,8 @@
 #include "accel_enrichment.h"
 #endif /* EFI_ACCEL_ENRICHMENT */
 
-EXTERN_ENGINE;
+EXTERN_ENGINE
+;
 
 static Map3D1616 fuelMap;
 static Map3D1616 fuelPhaseMap;
@@ -52,6 +53,8 @@ extern Map3D1616 afrMap;
  * @return total duration of fuel injection per engine cycle, in milliseconds
  */
 float getRealMafFuel(float airSpeed, int rpm DECLARE_ENGINE_PARAMETER_S) {
+	if (rpm == 0)
+		return 0;
 	// duration of engine cycle, in hours
 	float engineCycleDurationHr = 1.0 / 60 / rpm;
 
@@ -102,18 +105,19 @@ static int getNumberOfInjections(engine_configuration_s const *engineConfigurati
 	}
 }
 
-
 /**
  * @returns	Length of fuel injection, in milliseconds
  */
 float getFuelMs(int rpm DECLARE_ENGINE_PARAMETER_S) {
 	float theoreticalInjectionLength;
 	if (isCrankingR(rpm)) {
-		theoreticalInjectionLength = getCrankingFuel(engine) / getNumberOfInjections(engineConfiguration, engineConfiguration->crankingInjectionMode);
+		theoreticalInjectionLength = getCrankingFuel(engine)
+				/ getNumberOfInjections(engineConfiguration, engineConfiguration->crankingInjectionMode);
 	} else {
 		float baseFuel = getBaseFuel(rpm PASS_ENGINE_PARAMETER);
 		float fuelPerCycle = getRunningFuel(baseFuel, rpm PASS_ENGINE_PARAMETER);
-		theoreticalInjectionLength = fuelPerCycle / getNumberOfInjections(engineConfiguration, engine->engineConfiguration->injectionMode);
+		theoreticalInjectionLength = fuelPerCycle
+				/ getNumberOfInjections(engineConfiguration, engine->engineConfiguration->injectionMode);
 	}
 	return theoreticalInjectionLength + ENGINE(injectorLagMs);
 }
@@ -187,8 +191,7 @@ float getBaseTableFuel(engine_configuration_s *engineConfiguration, int rpm, flo
  */
 float getCrankingFuel(Engine *engine) {
 	return getCrankingFuel3(engine->engineConfiguration, getCoolantTemperature(engine),
-			engine->rpmCalculator.getRevolutionCounterSinceStart()
-		);
+			engine->rpmCalculator.getRevolutionCounterSinceStart());
 }
 #endif
 
@@ -198,12 +201,9 @@ float getCrankingFuel3(engine_configuration_s *engineConfiguration, float coolan
 	float baseCrankingFuel = engineConfiguration->cranking.baseFuel;
 	if (cisnan(coolantTemperature))
 		return baseCrankingFuel;
-	float durationCoef = interpolate2d(revolutionCounterSinceStart,
-			engineConfiguration->crankingCycleBins,
+	float durationCoef = interpolate2d(revolutionCounterSinceStart, engineConfiguration->crankingCycleBins,
 			engineConfiguration->crankingCycleCoef, CRANKING_CURVE_SIZE);
 
 	return interpolate2d(coolantTemperature, engineConfiguration->crankingFuelBins,
-			engineConfiguration->crankingFuelCoef, CRANKING_CURVE_SIZE)
-			* baseCrankingFuel
-			* durationCoef;
+			engineConfiguration->crankingFuelCoef, CRANKING_CURVE_SIZE) * baseCrankingFuel * durationCoef;
 }
diff --git a/firmware/controllers/algo/idle_controller.cpp b/firmware/controllers/algo/idle_controller.cpp
index cfa0be9fe8..d0efb044bf 100644
--- a/firmware/controllers/algo/idle_controller.cpp
+++ b/firmware/controllers/algo/idle_controller.cpp
@@ -27,6 +27,8 @@ EXTERN_ENGINE
 IdleValveState::IdleValveState() {
 	value = DEFAULT_IDLE_DUTY;
 	timeOfLastIdleChange = 0;
+	time = 0;
+	targetRpmRangeLeft = targetRpmRangeRight = 0;
 }
 
 void IdleValveState::init(DECLARE_ENGINE_PARAMETER_F) {
diff --git a/firmware/controllers/algo/lcd_menu_tree.cpp b/firmware/controllers/algo/lcd_menu_tree.cpp
index fab5fd2c3d..02cfedafc2 100644
--- a/firmware/controllers/algo/lcd_menu_tree.cpp
+++ b/firmware/controllers/algo/lcd_menu_tree.cpp
@@ -12,6 +12,8 @@
 MenuTree::MenuTree(MenuItem *root) {
 	this->root = root;
 	current = NULL;
+	linesCount = 0;
+	topVisible = NULL;
 }
 
 void MenuTree::init(MenuItem *first, int linesCount) {
@@ -45,38 +47,32 @@ void MenuTree::nextItem(void) {
 		topVisible = topVisible->next;
 }
 
-MenuItem::MenuItem(MenuItem * parent, const char *text, VoidCallback callback) {
-	lcdLine = LL_STRING;
-	this->text = text;
-	init(parent, callback);
+MenuItem::MenuItem(MenuItem * parent, const char *text, VoidCallback callback) : MenuItem(parent, LL_STRING, text, callback) {
 }
 
-MenuItem::MenuItem(MenuItem * parent, const char *text) {
-	lcdLine = LL_STRING;
-	this->text = text;
-	init(parent, NULL);
+MenuItem::MenuItem(MenuItem * parent, const char *text) : MenuItem(parent, LL_STRING, text, NULL) {
 }
 
-MenuItem::MenuItem(MenuItem * parent, lcd_line_e lcdLine) {
-	this->lcdLine = lcdLine;
-	text = NULL;
-	topOfTheList = NULL;
-	init(parent, NULL);
+MenuItem::MenuItem(MenuItem * parent, lcd_line_e lcdLine) : MenuItem(parent, lcdLine, NULL, NULL) {
 }
 
-void MenuItem::init(MenuItem * parent, VoidCallback callback) {
+MenuItem::MenuItem(MenuItem * parent, lcd_line_e lcdLine, const char *text, VoidCallback callback) {
 	this->parent = parent;
+	this->lcdLine = lcdLine;
+	this->text = text;
+	this->callback = callback;
+
 	firstChild = NULL;
 	lastChild = NULL;
+	topOfTheList = NULL;
 	next = NULL;
-	this->callback = callback;
+	index = 0;
 
 	// root element has NULL parent
 	if (parent != NULL) {
 		if (parent->firstChild == NULL) {
-			parent->firstChild = this;
-			index = 0;
 			topOfTheList = this;
+			parent->firstChild = this;
 		}
 		if (parent->lastChild != NULL) {
 			index = parent->lastChild->index + 1;
diff --git a/firmware/controllers/algo/lcd_menu_tree.h b/firmware/controllers/algo/lcd_menu_tree.h
index 585f59ae96..4b782dd07a 100644
--- a/firmware/controllers/algo/lcd_menu_tree.h
+++ b/firmware/controllers/algo/lcd_menu_tree.h
@@ -42,6 +42,7 @@ typedef void (*VoidCallback)(void);
 
 class MenuItem {
 public:
+	MenuItem(MenuItem * parent, lcd_line_e lcdLine, const char *text, VoidCallback callback);
 	MenuItem(MenuItem * parent, const char *text, VoidCallback callback);
 	MenuItem(MenuItem * parent, const char *text);
 	MenuItem(MenuItem * parent, lcd_line_e lcdLine);
@@ -55,8 +56,6 @@ public:
 	MenuItem *lastChild;
 	MenuItem *next;
 	VoidCallback callback;
-private:
-	void init(MenuItem * parent, VoidCallback callback);
 };
 
 class MenuTree {
diff --git a/firmware/controllers/core/table_helper.h b/firmware/controllers/core/table_helper.h
index 4714b374fa..662857d857 100644
--- a/firmware/controllers/core/table_helper.h
+++ b/firmware/controllers/core/table_helper.h
@@ -30,12 +30,19 @@ private:
 template<int SIZE>
 class Table2D {
 public:
+	Table2D();
 	void preCalc(float *bin, float *values);
 	float aTable[SIZE];
 	float bTable[SIZE];
 	float *bin;
 };
 
+template<int SIZE>
+Table2D<SIZE>::Table2D() {
+	bin = NULL;
+}
+
+
 template<int SIZE>
 void Table2D<SIZE>::preCalc(float *bin, float *values) {
 	this->bin = bin;
diff --git a/firmware/controllers/system/efiGpio.cpp b/firmware/controllers/system/efiGpio.cpp
index 82ca0c96da..6ab35b050d 100644
--- a/firmware/controllers/system/efiGpio.cpp
+++ b/firmware/controllers/system/efiGpio.cpp
@@ -9,6 +9,9 @@
 #if EFI_GPIO
 #include "efiGpio.h"
 #include "io_pins.h"
+#if EFI_PROD_CODE || defined(__DOXYGEN__)
+#include "gpio_helper.h"
+#endif
 
 pin_output_mode_e OUTPUT_MODE_DEFAULT = OM_DEFAULT;
 
@@ -16,11 +19,16 @@ pin_output_mode_e OUTPUT_MODE_DEFAULT = OM_DEFAULT;
 engine_pins_s enginePins;
 
 NamedOutputPin::NamedOutputPin() : OutputPin() {
-
+	name = NULL;
 }
 
 OutputPin::OutputPin() {
 	modePtr = &OUTPUT_MODE_DEFAULT;
+#if EFI_PROD_CODE || defined(__DOXYGEN__)
+	port = NULL;
+	pin = 0;
+	currentLogicValue = INITIAL_PIN_STATE;
+#endif
 }
 
 void OutputPin::setValue(int logicValue) {
diff --git a/firmware/controllers/system/efiGpio.h b/firmware/controllers/system/efiGpio.h
index da423c2568..813e394414 100644
--- a/firmware/controllers/system/efiGpio.h
+++ b/firmware/controllers/system/efiGpio.h
@@ -24,7 +24,7 @@ public:
 	void setValue(int logicValue);
 	void setDefaultPinState(pin_output_mode_e *defaultState);
 	bool_t getLogicValue();
-#if EFI_PROD_CODE
+#if EFI_PROD_CODE || defined(__DOXYGEN__)
 	GPIO_TypeDef *port;
 	int pin;
 #endif /* EFI_PROD_CODE */
diff --git a/firmware/controllers/system/pwm_generator_logic.cpp b/firmware/controllers/system/pwm_generator_logic.cpp
index c6ca7ea39b..5da1e9644f 100644
--- a/firmware/controllers/system/pwm_generator_logic.cpp
+++ b/firmware/controllers/system/pwm_generator_logic.cpp
@@ -28,7 +28,7 @@ PwmConfig::PwmConfig() {
 	memset(&safe, 0, sizeof(safe));
 	scheduling.name = "PwmConfig";
 	periodNt = NAN;
-// todo	outputPins = NULL;
+	memset(&outputPins, 0, sizeof(outputPins));
 	phaseCount = 0;
 	cycleCallback = NULL;
 	stateChangeCallback = NULL;
diff --git a/firmware/controllers/trigger/rpm_calculator.cpp b/firmware/controllers/trigger/rpm_calculator.cpp
index 282c185f9b..38adc767ab 100644
--- a/firmware/controllers/trigger/rpm_calculator.cpp
+++ b/firmware/controllers/trigger/rpm_calculator.cpp
@@ -225,7 +225,8 @@ float getCrankshaftAngleNt(uint64_t timeNt DECLARE_ENGINE_PARAMETER_S) {
 	 * compiler is not smart enough to figure out that "A / ( B / C)" could be optimized into
 	 * "A * C / B" in order to replace a slower division with a faster multiplication.
 	 */
-	return timeSinceZeroAngleNt / getOneDegreeTimeNt(engine->rpmCalculator.rpm(PASS_ENGINE_PARAMETER_F));
+	int rpm = engine->rpmCalculator.rpm(PASS_ENGINE_PARAMETER_F);
+	return rpm == 0 ? NAN : timeSinceZeroAngleNt / getOneDegreeTimeNt(rpm);
 }
 
 void initRpmCalculator(Engine *engine) {
diff --git a/firmware/controllers/trigger/trigger_structure.cpp b/firmware/controllers/trigger/trigger_structure.cpp
index e73d5df256..8577c502ac 100644
--- a/firmware/controllers/trigger/trigger_structure.cpp
+++ b/firmware/controllers/trigger/trigger_structure.cpp
@@ -131,6 +131,11 @@ TriggerState::TriggerState() {
 	totalRevolutionCounter = 0;
 	totalTriggerErrorCounter = 0;
 	orderingErrorCounter = 0;
+	currentDuration = 0;
+	curSignal = SHAFT_PRIMARY_DOWN;
+	prevSignal = SHAFT_PRIMARY_DOWN;
+	prevCycleDuration = 0;
+	startOfCycleNt = 0;
 
 	resetRunningCounters();
 	clear();
diff --git a/firmware/development/wave_analyzer.cpp b/firmware/development/wave_analyzer.cpp
index cc3283abe7..1f546642f5 100644
--- a/firmware/development/wave_analyzer.cpp
+++ b/firmware/development/wave_analyzer.cpp
@@ -225,7 +225,8 @@ static void reportWave(Logging *logging, int index) {
 		appendPrintf(logging, "%s", DELIMETER);
 
 		uint32_t offsetUs = getWaveOffset(index);
-		float oneDegreeUs = getOneDegreeTimeUs(getRpm());
+		int rpm = getRpm();
+		float oneDegreeUs = rpm == 0 ? NAN : getOneDegreeTimeUs(rpm);
 
 		appendPrintf(logging, "advance%d%s", index, DELIMETER);
 		float angle = (offsetUs / oneDegreeUs) - tdcPosition();
diff --git a/firmware/rusefi.cpp b/firmware/rusefi.cpp
index ff2a691cd7..4ecc2ef96f 100644
--- a/firmware/rusefi.cpp
+++ b/firmware/rusefi.cpp
@@ -274,9 +274,9 @@ static char UNUSED_RAM_SIZE[9999];
 static char UNUSED_CCM_SIZE[4900] CCM_OPTIONAL;
 
 int getRusEfiVersion(void) {
-	if (UNUSED_RAM_SIZE == 0)
+	if (UNUSED_RAM_SIZE[0]== 0)
 		return 1; // this is here to make the compiler happy about the unused array
-	if (UNUSED_CCM_SIZE == 0)
+	if (UNUSED_CCM_SIZE[0] == 0)
 		return 1; // this is here to make the compiler happy about the unused array
 	return 20150226;
 }
diff --git a/firmware/util/datalogging.cpp b/firmware/util/datalogging.cpp
index d1643287b7..63311ecded 100644
--- a/firmware/util/datalogging.cpp
+++ b/firmware/util/datalogging.cpp
@@ -388,12 +388,13 @@ void initIntermediateLoggingBuffer(void) {
 
 Logging::Logging() {
 	name = NULL;
-	buffer = linePointer = NULL;
+	buffer = NULL;
+	linePointer = NULL;
 	bufferSize = 0;
 	isInitialized = false;
 }
 
-Logging::Logging(char const *name, char *buffer, int bufferSize) {
+Logging::Logging(char const *name, char *buffer, int bufferSize) : Logging() {
 #if ! EFI_UNIT_TEST
 	initLoggingExt(this, "settings control", buffer, bufferSize);
 #endif /* ! EFI_UNIT_TEST */
diff --git a/firmware/util/listener_array.cpp b/firmware/util/listener_array.cpp
index e01dfec989..6011c6dd1a 100644
--- a/firmware/util/listener_array.cpp
+++ b/firmware/util/listener_array.cpp
@@ -10,6 +10,7 @@
 
 IntListenerArray::IntListenerArray() {
 	currentListenersCount = 0;
+	memset(&args, 0, sizeof(args));
 }
 
 void IntListenerArray::registerCallback(VoidInt handler, void *arg) {