diff --git a/firmware/config/engines/mazda_miata_vvt.cpp b/firmware/config/engines/mazda_miata_vvt.cpp
index f8a0dd5d9a..b668db6e05 100644
--- a/firmware/config/engines/mazda_miata_vvt.cpp
+++ b/firmware/config/engines/mazda_miata_vvt.cpp
@@ -18,7 +18,8 @@ void setMazdaMiata2003EngineConfiguration(DECLARE_ENGINE_PARAMETER_F) {
 
 	engineConfiguration->hasMapSensor = true;
 
-	engineConfiguration->trigger.type = TT_ONE;
+	engineConfiguration->trigger.type = TT_MIATA_VVT;
+	setOperationMode(engineConfiguration, FOUR_STROKE_CRANK_SENSOR);
 	engineConfiguration->specs.displacement = 1.8;
 
 	boardConfiguration->triggerInputPins[0] = GPIOA_5;
diff --git a/firmware/controllers/algo/auto_generated_enums.cpp b/firmware/controllers/algo/auto_generated_enums.cpp
index e346815205..87582b0e06 100644
--- a/firmware/controllers/algo/auto_generated_enums.cpp
+++ b/firmware/controllers/algo/auto_generated_enums.cpp
@@ -395,6 +395,8 @@ case FOUR_STROKE_CRANK_SENSOR:
   return "FOUR_STROKE_CRANK_SENSOR";
 case TWO_STROKE:
   return "TWO_STROKE";
+case FOUR_STROKE_SYMMETRICAL_CRANK_SENSOR:
+  return "FOUR_STROKE_SYMMETRICAL_CRANK_SENSOR";
 case Force_4b_operation_mode_e:
   return "Force_4b_operation_mode_e";
 case OM_NONE:
diff --git a/firmware/controllers/algo/engine_configuration_generated_structures.h b/firmware/controllers/algo/engine_configuration_generated_structures.h
index e9c29d63dd..7529a65dd5 100644
--- a/firmware/controllers/algo/engine_configuration_generated_structures.h
+++ b/firmware/controllers/algo/engine_configuration_generated_structures.h
@@ -1,4 +1,4 @@
-// this section was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Fri Nov 11 21:53:11 EST 2016
+// this section was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Sun Nov 13 22:09:24 EST 2016
 // begin
 #ifndef ENGINE_CONFIGURATION_GENERATED_H_
 #define ENGINE_CONFIGURATION_GENERATED_H_
@@ -1116,6 +1116,7 @@ typedef struct {
 	int canSleepPeriod;
 	/**
 	 * See engineCycle
+	 * set operation_mode X
 	 * offset 500
 	 */
 	operation_mode_e operationMode;
@@ -1993,4 +1994,4 @@ typedef struct {
 
 #endif
 // end
-// this section was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Fri Nov 11 21:53:11 EST 2016
+// this section was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Sun Nov 13 22:09:24 EST 2016
diff --git a/firmware/controllers/algo/rusefi_enums.h b/firmware/controllers/algo/rusefi_enums.h
index c29249516d..75eb3cb0c5 100644
--- a/firmware/controllers/algo/rusefi_enums.h
+++ b/firmware/controllers/algo/rusefi_enums.h
@@ -365,6 +365,11 @@ typedef enum {
 	 */
 	TWO_STROKE = 3,
 
+	/**
+	 * 720 degree engine cycle but trigger is defined using a 180 cycle which is when repeated three more times
+	 */
+	FOUR_STROKE_SYMMETRICAL_CRANK_SENSOR = 4,
+
 	Force_4b_operation_mode_e = ENUM_32_BITS,
 } operation_mode_e;
 
diff --git a/firmware/controllers/settings.cpp b/firmware/controllers/settings.cpp
index 1c05becf6e..247460aae4 100644
--- a/firmware/controllers/settings.cpp
+++ b/firmware/controllers/settings.cpp
@@ -988,6 +988,8 @@ static void setValue(const char *paramStr, const char *valueStr) {
 		engineConfiguration->step1rpm = valueI;
 	} else if (strEqualCaseInsensitive(paramStr, "step1timing")) {
 		engineConfiguration->step1timing = valueI;
+	} else if (strEqualCaseInsensitive(paramStr, "operation_mode")) {
+		engineConfiguration->operationMode = (operation_mode_e)valueI;
 	} else if (strEqualCaseInsensitive(paramStr, "suckedOffCoef")) {
 		engineConfiguration->suckedOffCoef = valueF;
 	} else if (strEqualCaseInsensitive(paramStr, "addedToWallCoef")) {
diff --git a/firmware/controllers/trigger/trigger_central.cpp b/firmware/controllers/trigger/trigger_central.cpp
index 3c77604d3e..37ea2ee312 100644
--- a/firmware/controllers/trigger/trigger_central.cpp
+++ b/firmware/controllers/trigger/trigger_central.cpp
@@ -240,13 +240,16 @@ void TriggerCentral::handleShaftSignal(trigger_event_e signal DECLARE_ENGINE_PAR
 	 * cycle into a four stroke, 720 degrees cycle.
 	 */
 	int triggerIndexForListeners;
-	if (engineConfiguration->operationMode != FOUR_STROKE_CRANK_SENSOR) {
+	if (engineConfiguration->operationMode == FOUR_STROKE_CAM_SENSOR ||
+			engineConfiguration->operationMode == TWO_STROKE) {
 		// That's easy - trigger cycle matches engine cycle
 		triggerIndexForListeners = triggerState.getCurrentIndex();
 	} else {
-		bool isEven = triggerState.isEvenRevolution();
+		int crankDivider = engineConfiguration->operationMode == FOUR_STROKE_CRANK_SENSOR ? 2 : 4;
 
-		triggerIndexForListeners = triggerState.getCurrentIndex() + (isEven ? 0 : TRIGGER_SHAPE(size));
+		int crankInternalIndex = triggerState.getTotalRevolutionCounter() % crankDivider;
+
+		triggerIndexForListeners = triggerState.getCurrentIndex() + (crankInternalIndex * TRIGGER_SHAPE(size));
 	}
 	if (triggerIndexForListeners == 0) {
 		timeAtVirtualZeroNt = nowNt;
diff --git a/firmware/controllers/trigger/trigger_decoder.cpp b/firmware/controllers/trigger/trigger_decoder.cpp
index cc1b8a6623..bce10b8e26 100644
--- a/firmware/controllers/trigger/trigger_decoder.cpp
+++ b/firmware/controllers/trigger/trigger_decoder.cpp
@@ -482,6 +482,8 @@ void TriggerShape::initializeTriggerShape(Logging *logger DECLARE_ENGINE_PARAMET
 		break;
 
 	case TT_MIATA_VVT:
+		initializeMazdaMiataNb2Crank(triggerShape PASS_ENGINE_PARAMETER);
+		break;
 
 	case TT_DODGE_NEON_1995:
 		configureNeon1995TriggerShape(triggerShape PASS_ENGINE_PARAMETER);
diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 74da6335c6..cb3c12e16c 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -319,8 +319,8 @@ can_nbc_e canNbcType;
 int canSleepPeriod;CANbus thread period, ms;"ms",    1,      0,       0,  1000.0,        2
 
 
-custom operation_mode_e 4 bits,    U32,    @OFFSET@, [0:1], "INVALID", "4 stroke without cam sensor", "4 stroke with cam sensor", "2 stroke"
-operation_mode_e operationMode;See engineCycle
+custom operation_mode_e 4 bits,    U32,    @OFFSET@, [0:2], "INVALID", "4 stroke without cam sensor", "4 stroke with cam sensor", "2 stroke", "4 stroke with symmetrical crank", "INVALID", "INVALID", "INVALID"
+operation_mode_e operationMode;See engineCycle\nset operation_mode X
 
 custom display_mode_e 4 bits,    U32,    @OFFSET@, [0:1], "none", "hd44780", "hd44780 over pcf8574", "INVALID"
 display_mode_e displayMode;
@@ -340,9 +340,9 @@ struct trigger_config_s @brief Trigger wheel(s) configuration
 
 custom bool32_t 4 bits,    U32,   @OFFSET@, [0:0], "false", "true"
 
-#define trigger_type_e_enum "custom toothed wheel", "ford aspire", "dodge neon", "Miata NA", "Miata NB", "GM_7X", "Cooper", "Mazda SOHC 4", "60/2", "36/1", "Accord CD", "MITSU", "ACCORD 2", "ACCORD DIP", "Neon 2003", "MAZDA D 1+4", "1+1", "1+60/2", "Single Tooth", "Dodge Ram 1+16", "60/2 VW", "Accord 1+24", "DODGE STRATUS",  "36_2_2_2", "Nissan", "2JZ", "Rover K", "GM LS 24", "Honda CBR 600", "trg29", "trg30", "INVALID" 
+#define trigger_type_e_enum "custom toothed wheel", "ford aspire", "dodge neon", "Miata NA", "Miata NB", "GM_7X", "Cooper", "Mazda SOHC 4", "60/2", "36/1", "Accord CD", "MITSU", "ACCORD 2", "ACCORD DIP", "Neon 2003", "MAZDA D 1+4", "1+1", "1+60/2", "Single Tooth", "Dodge Ram 1+16", "60/2 VW", "Accord 1+24", "DODGE STRATUS",  "36_2_2_2", "Nissan", "2JZ", "Rover K", "GM LS 24", "Honda CBR 600", "2JZ_1_12", "Honda CBR 600 custom", "3/1 skipped" , "2003 neon crank", "Miata VVT", "INVALID", "INVALID", "INVALID", "INVALID"
 
-custom trigger_type_e 4 bits,    U32,   @OFFSET@, [0:4], @@trigger_type_e_enum@@
+custom trigger_type_e 4 bits,    U32,   @OFFSET@, [0:5], @@trigger_type_e_enum@@
 	trigger_type_e type;set_trigger_type X
 
 	bit customIsSynchronizationNeeded;
diff --git a/firmware/tunerstudio/rusefi.ini b/firmware/tunerstudio/rusefi.ini
index 2536f6e87e..07b6763683 100644
--- a/firmware/tunerstudio/rusefi.ini
+++ b/firmware/tunerstudio/rusefi.ini
@@ -42,7 +42,7 @@ enable2ndByteCanID = false
 
 ; see PAGE_0_SIZE in C source code    
 ; CONFIG_DEFINITION_START
-; this section was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Fri Nov 11 21:56:01 EST 2016
+; this section was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Sun Nov 13 22:30:49 EST 2016
 
 pageSize            = 16376
 page = 1
@@ -146,7 +146,7 @@ page = 1
 	vehicleSpeedCoef				= scalar, F32,	488,	"coef", 1, 0, 0.01, 2000.0, 2
 	canNbcType					 = bits, U32, 492, [0:1], "BMW", "FIAT", "VAG" , "MAZDA RX8"
 	canSleepPeriod					= scalar, S32,	496,	"ms", 1, 0, 0, 1000.0, 2
-	operationMode				 = bits, U32, 500, [0:1], "INVALID", "4 stroke without cam sensor", "4 stroke with cam sensor", "2 stroke"
+	operationMode				 = bits, U32, 500, [0:2], "INVALID", "4 stroke without cam sensor", "4 stroke with cam sensor", "2 stroke", "4 stroke with symmetrical crank", "INVALID", "INVALID", "INVALID"
 	displayMode					 = bits, U32, 504, [0:1], "none", "hd44780", "hd44780 over pcf8574", "INVALID"
 	logFormat					 = bits, U32, 508, [0:0], "native", "Mega Log Viewer"
 	firmwareVersion					= scalar, S32,	512,	"index", 1, 0, 0, 300, 0
@@ -155,7 +155,7 @@ page = 1
 	tpsAdcChannel				 = bits, U32, 524, [0:4] "PA0", "PA1", "PA2", "PA3", "PA4", "PA5", "PA6", "PA7", "PB0", "PB1", "PC0", "PC1", "PC2", "PC3", "PC4", "PC5", "Disabled", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID"
 ;skipping overrideCrankingIgnition offset 528
 	sensorChartFrequency			= scalar, S32,	532,	"index", 1, 0, 0, 300, 0 ; size 4
-	trigger_type				 = bits, U32, 536, [0:4], "custom toothed wheel", "ford aspire", "dodge neon", "Miata NA", "Miata NB", "GM_7X", "Cooper", "Mazda SOHC 4", "60/2", "36/1", "Accord CD", "MITSU", "ACCORD 2", "ACCORD DIP", "Neon 2003", "MAZDA D 1+4", "1+1", "1+60/2", "Single Tooth", "Dodge Ram 1+16", "60/2 VW", "Accord 1+24", "DODGE STRATUS", "36_2_2_2", "Nissan", "2JZ", "Rover K", "GM LS 24", "Honda CBR 600", "trg29", "trg30", "INVALID"
+	trigger_type				 = bits, U32, 536, [0:5], "custom toothed wheel", "ford aspire", "dodge neon", "Miata NA", "Miata NB", "GM_7X", "Cooper", "Mazda SOHC 4", "60/2", "36/1", "Accord CD", "MITSU", "ACCORD 2", "ACCORD DIP", "Neon 2003", "MAZDA D 1+4", "1+1", "1+60/2", "Single Tooth", "Dodge Ram 1+16", "60/2 VW", "Accord 1+24", "DODGE STRATUS", "36_2_2_2", "Nissan", "2JZ", "Rover K", "GM LS 24", "Honda CBR 600", "2JZ_1_12", "Honda CBR 600 custom", "3/1 skipped" , "2003 neon crank", "Miata VVT", "INVALID", "INVALID", "INVALID", "INVALID"
 	trigger_customIsSynchronizationNeeded= bits,    U32,   	540, [0:0], "false", "true"
 	trigger_customNeedSecondTriggerInput= bits,    U32,   	540, [1:1], "false", "true"
 	trigger_useOnlyFirstChannel= bits,    U32,   	540, [2:2], "false", "true"
diff --git a/java_console/models/src/com/rusefi/config/Fields.java b/java_console/models/src/com/rusefi/config/Fields.java
index 7cbf99d9af..ddb215e121 100644
--- a/java_console/models/src/com/rusefi/config/Fields.java
+++ b/java_console/models/src/com/rusefi/config/Fields.java
@@ -1,6 +1,6 @@
 package com.rusefi.config;
 
-// this file was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Fri Nov 11 21:53:11 EST 2016
+// this file was generated automatically by ConfigDefinition.jar based on rusefi_config.txt Sun Nov 13 22:09:24 EST 2016
 public class Fields {
 	public static final int LE_COMMAND_LENGTH = 200;
 	public static final int FSIO_ADC_COUNT = 4;
@@ -1075,7 +1075,7 @@ public class Fields {
 	public static final Field TPSADCCHANNEL = Field.create("TPSADCCHANNEL", 524, FieldType.INT, adc_channel_e);
 	public static final Field OVERRIDECRANKINGIGNITION = Field.create("OVERRIDECRANKINGIGNITION", 528, FieldType.INT);
 	public static final Field SENSORCHARTFREQUENCY = Field.create("SENSORCHARTFREQUENCY", 532, FieldType.INT);
-	public static final String[] trigger_type_e = {"custom toothed wheel", "ford aspire", "dodge neon", "Miata NA", "Miata NB", "GM_7X", "Cooper", "Mazda SOHC 4", "60/2", "36/1", "Accord CD", "MITSU", "ACCORD 2", "ACCORD DIP", "Neon 2003", "MAZDA D 1+4", "1+1", "1+60/2", "Single Tooth", "Dodge Ram 1+16", "60/2 VW", "Accord 1+24", "DODGE STRATUS", "36_2_2_2", "Nissan", "2JZ", "Rover K", "GM LS 24", "Honda CBR 600", "trg29", "trg30", "INVALID"};
+	public static final String[] trigger_type_e = {"custom toothed wheel", "ford aspire", "dodge neon", "Miata NA", "Miata NB", "GM_7X", "Cooper", "Mazda SOHC 4", "60/2", "36/1", "Accord CD", "MITSU", "ACCORD 2", "ACCORD DIP", "Neon 2003", "MAZDA D 1+4", "1+1", "1+60/2", "Single Tooth", "Dodge Ram 1+16", "60/2 VW", "Accord 1+24", "DODGE STRATUS", "36_2_2_2", "Nissan", "2JZ", "Rover K", "GM LS 24", "Honda CBR 600", "2JZ_1_12", "Honda CBR 600 custom", "3/1 skipped" , "2003 neon crank", "Miata VVT", "INVALID", "INVALID", "INVALID", "INVALID"};
 	public static final Field TRIGGER_TYPE = Field.create("TRIGGER_TYPE", 536, FieldType.INT, trigger_type_e);
 	public static final Field TRIGGER_CUSTOMISSYNCHRONIZATIONNEEDED = Field.create("TRIGGER_CUSTOMISSYNCHRONIZATIONNEEDED", 540, FieldType.BIT, 0);
 	public static final Field TRIGGER_CUSTOMNEEDSECONDTRIGGERINPUT = Field.create("TRIGGER_CUSTOMNEEDSECONDTRIGGERINPUT", 540, FieldType.BIT, 1);