diff --git a/firmware/config/engines/custom_engine.cpp b/firmware/config/engines/custom_engine.cpp
index 8bf759af1f..6dde2e1441 100644
--- a/firmware/config/engines/custom_engine.cpp
+++ b/firmware/config/engines/custom_engine.cpp
@@ -38,7 +38,7 @@ void setCustomEngineConfiguration(engine_configuration_s *engineConfiguration) {
 	 */
 	// Frankenso low out #1: PE6
 	// Frankenso low out #2: PE5
-	// Frankenso low out #3: PD7
+	// Frankenso low out #3: PD7 Main Relay
 	// Frankenso low out #4: PC13 Idle valve solenoid
 	// Frankenso low out #5: PE3
 	// Frankenso low out #6: PE4
@@ -49,6 +49,7 @@ void setCustomEngineConfiguration(engine_configuration_s *engineConfiguration) {
 	// Frankenso low out #11: PB8 injector #3
 	// Frankenso low out #12: PB7 injector #4
 
+	boardConfiguration->mainRelayPin = GPIOD_7;
 	boardConfiguration->idleValvePin = GPIOC_13;
 
 	boardConfiguration->fanPin = GPIOE_5;
diff --git a/firmware/config/engines/mazda_626.cpp b/firmware/config/engines/mazda_626.cpp
index 2aed8583bd..d9591575da 100644
--- a/firmware/config/engines/mazda_626.cpp
+++ b/firmware/config/engines/mazda_626.cpp
@@ -21,4 +21,53 @@ void setMazda626EngineConfiguration(engine_configuration_s *engineConfiguration)
 
 	setSingleCoilDwell(engineConfiguration);
 	engineConfiguration->ignitionMode = IM_ONE_COIL;
+
+	/**
+	 * I-O mapping is a copy of Custom engine type
+	 */
+
+	/**
+	 * Frankenso analog #1 PC2 ADC12
+	 * Frankenso analog #2 PC1 ADC11
+	 * Frankenso analog #3
+	 * Frankenso analog #4 PC3 ADC13
+	 * Frankenso analog #5
+	 * Frankenso analog #6
+	 * Frankenso analog #7 PA4 ADC4
+	 * Frankenso analog #8
+	 * Frankenso analog #9
+	 * Frankenso analog #10 PA6 ADC6
+	 * Frankenso analog #11 PC5 ADC15
+	 * Frankenso analog #12 VBatt
+	 */
+
+
+	/**
+	 * http://rusefi.com/wiki/index.php?title=Manual:Hardware_Frankenso_board
+	 */
+	// Frankenso low out #1: PE6
+	// Frankenso low out #2: PE5
+	// Frankenso low out #3: PD7 Main Relay
+	// Frankenso low out #4: PC13 Idle valve solenoid
+	// Frankenso low out #5: PE3
+	// Frankenso low out #6: PE4
+	// Frankenso low out #7: PE1 (do not use with discovery!)
+	// Frankenso low out #8: PE2 injector #2
+	// Frankenso low out #9: PB9 injector #1
+	// Frankenso low out #10: PE0 (do not use with discovery!)
+	// Frankenso low out #11: PB8 injector #3
+	// Frankenso low out #12: PB7 injector #4
+
+	boardConfiguration->mainRelayPin = GPIOD_7;
+	boardConfiguration->idleValvePin = GPIOC_13;
+
+	boardConfiguration->fanPin = GPIOE_5;
+
+	boardConfiguration->injectionPins[0] = GPIOB_9; // #1
+	boardConfiguration->injectionPins[1] = GPIOE_2; // #2
+	boardConfiguration->injectionPins[2] = GPIOB_8; // #3
+	boardConfiguration->injectionPins[3] = GPIOB_7; // #4
+
+	boardConfiguration->ignitionPins[0] = GPIOC_7;
+
 }
diff --git a/firmware/controllers/settings.cpp b/firmware/controllers/settings.cpp
index 44d3cc6071..bceb4d2f36 100644
--- a/firmware/controllers/settings.cpp
+++ b/firmware/controllers/settings.cpp
@@ -89,6 +89,9 @@ static void printOutputs(engine_configuration_s *engineConfiguration) {
 
 	scheduleMsg(&logger, "fanPin: mode %s @ %s", getPin_output_mode_e(boardConfiguration->fanPinMode),
 			hwPortname(boardConfiguration->fanPin));
+
+	scheduleMsg(&logger, "mainRelay: mode %s @ %s", getPin_output_mode_e(boardConfiguration->mainRelayPinMode),
+			hwPortname(boardConfiguration->mainRelayPin));
 }
 
 EXTERN_ENGINE;
diff --git a/firmware/rusefi.cpp b/firmware/rusefi.cpp
index ec944df85c..55a2d834d3 100644
--- a/firmware/rusefi.cpp
+++ b/firmware/rusefi.cpp
@@ -259,5 +259,5 @@ int getRusEfiVersion(void) {
 		return 1; // this is here to make the compiler happy about the unused array
 	if (UNUSED_CCM_SIZE == 0)
 		return 1; // this is here to make the compiler happy about the unused array
-	return 20150207;
+	return 20150208;
 }
diff --git a/firmware/tunerstudio/rusefi.ini b/firmware/tunerstudio/rusefi.ini
index 66a0b491c6..e4b62df415 100644
--- a/firmware/tunerstudio/rusefi.ini
+++ b/firmware/tunerstudio/rusefi.ini
@@ -1022,6 +1022,9 @@ fileVersion = { 20150202 }
 		field = "Ignition Pin 6",                       ignitionPins4, {ignitionMode != 0 && cylindersCount > 5}
 		
 	dialog = otherOutputs, "Board outputs"
+		field = "Main Relay Mode",			         	mainRelayPinMode	
+		field = "Main Relay Pin",  						mainRelayPin
+		field = ""
 		field = "Fuel Pump Pin Mode",         	        fuelPumpPinMode
 		field = "Fuel Pump Pin",						fuelPumpPin
 		field = ""