diff --git a/firmware/config/engines/mazda_miata.cpp b/firmware/config/engines/mazda_miata.cpp
index 8400457a8c..2c780e9b9b 100644
--- a/firmware/config/engines/mazda_miata.cpp
+++ b/firmware/config/engines/mazda_miata.cpp
@@ -72,35 +72,6 @@ static const uint8_t miataNA8_maf_advance_table[16][16] = { {/*0  engineLoad=1.2
 		+29, /*12 5760.0*/+28, /*13 6173.0*/+28, /*14 6586.0*/+27, /*15 7000.0*/+27 } };
 #endif
 
-static void commonMiataNa() {
-	engineConfiguration->trigger.type = trigger_type_e::TT_MAZDA_MIATA_NA;
-	engineConfiguration->engineChartSize = 100;
-
-	engineConfiguration->triggerInputPins[0] = Gpio::C6; // 2G YEL/BLU
-	engineConfiguration->triggerInputPins[1] = Gpio::A5; // 2E White CKP
-
-	engineConfiguration->ignitionMode = IM_WASTED_SPARK;
-
-	engineConfiguration->idle.solenoidFrequency = 160;
-
-	// Frankenstein: high side #1 is PE8
-	// Frankenstein: high side #2 is PE10
-	// Frankenstein: high side #3 is PE12
-	// Frankenstein: high side #4 is PE14
-	// Frankenstein: high side #5 is PC9
-	// Frankenstein: high side #6 is PC7
-
-	engineConfiguration->ignitionPins[0] = Gpio::E12; // Frankenstein: high side #3
-	engineConfiguration->ignitionPins[1] = Gpio::E14; // Frankenstein: high side #4
-	engineConfiguration->ignitionPins[2] = Gpio::Unassigned;
-	engineConfiguration->ignitionPins[3] = Gpio::Unassigned;
-
-	engineConfiguration->cranking.baseFuel = 24;
-
-	setCommonNTCSensor(&engineConfiguration->clt, 2700);
-	setCommonNTCSensor(&engineConfiguration->iat, 2700);
-}
-
 void common079721_2351() {
 
 	engineConfiguration->engineChartSize = 300;
@@ -132,42 +103,3 @@ void common079721_2351() {
 	engineConfiguration->clt.adcChannel = EFI_ADC_11;
 
 }
-
-/**
- * Tom tomiata, Frankenstein board
- */
-void setFrankensteinMiata1996() {
-	commonMiataNa();
-	engineConfiguration->displacement = 1.839;
-
-#if IGN_LOAD_COUNT == DEFAULT_IGN_LOAD_COUNT
-	copyTable(config->ignitionTable, miataNA8_maf_advance_table);
-#endif
-
-	// upside down
-	engineConfiguration->triggerInputPins[0] = Gpio::A5;
-	engineConfiguration->triggerInputPins[1] = Gpio::C6;
-
-	engineConfiguration->fuelPumpPin = Gpio::E4;
-	engineConfiguration->idle.solenoidPin = Gpio::E5;
-
-	engineConfiguration->mafAdcChannel = EFI_ADC_1;
-	engineConfiguration->clt.adcChannel = EFI_ADC_11;
-	engineConfiguration->tps1_1AdcChannel = EFI_ADC_13;
-
-	engineConfiguration->ignitionPins[0] = Gpio::E12; // Frankenstein: high side #3
-	engineConfiguration->ignitionPins[1] = Gpio::Unassigned;
-	engineConfiguration->ignitionPins[2] = Gpio::E14; // Frankenstein: high side #4
-	engineConfiguration->ignitionPins[3] = Gpio::Unassigned;
-
-	// harness is sequential but we have a limited board
-	engineConfiguration->crankingInjectionMode = IM_BATCH;
-	engineConfiguration->injectionMode = IM_BATCH;
-
-	engineConfiguration->injectionPins[0] = Gpio::B9; // Frankenstein: low side - out #12
-	engineConfiguration->injectionPins[1] = Gpio::B8; // Frankenstein: low side - out #11
-	engineConfiguration->injectionPins[2] = Gpio::Unassigned;
-	engineConfiguration->injectionPins[3] = Gpio::Unassigned;
-	engineConfiguration->injectionPins[4] = Gpio::Unassigned;
-	engineConfiguration->injectionPins[5] = Gpio::Unassigned;
-}
diff --git a/firmware/config/engines/mazda_miata.h b/firmware/config/engines/mazda_miata.h
index f41fc421b3..ecc77462a9 100644
--- a/firmware/config/engines/mazda_miata.h
+++ b/firmware/config/engines/mazda_miata.h
@@ -14,4 +14,3 @@
 #include "engine_configuration.h"
 
 void common079721_2351();
-void setFrankensteinMiata1996();
diff --git a/firmware/config/engines/mazda_miata_1_6.h b/firmware/config/engines/mazda_miata_1_6.h
index 81a6a77d91..f6325e8839 100644
--- a/firmware/config/engines/mazda_miata_1_6.h
+++ b/firmware/config/engines/mazda_miata_1_6.h
@@ -14,8 +14,6 @@
  */
 void setMiataNA6_MAP_Frankenso();
 
-void setMiataNA6_MAP_MRE();
-
 void miataNAcommonEngineSettings();
 
 /**
diff --git a/firmware/controllers/algo/engine_configuration.cpp b/firmware/controllers/algo/engine_configuration.cpp
index 6846f4fd72..004c182cd3 100644
--- a/firmware/controllers/algo/engine_configuration.cpp
+++ b/firmware/controllers/algo/engine_configuration.cpp
@@ -685,8 +685,6 @@ void resetConfigurationExt(configuration_callback_t boardCallback, engine_type_e
 		break;
 	case engine_type_e::ET_UNUSED_20:
 	case engine_type_e::ET_UNUSED_66:
-		setMiataNA6_MAP_MRE();
-		break;
 	case engine_type_e::MRE_BODY_CONTROL:
 		mreBCM();
 		break;
@@ -861,9 +859,7 @@ void resetConfigurationExt(configuration_callback_t boardCallback, engine_type_e
 	case engine_type_e::FORD_ESCORT_GT:
 		setFordEscortGt();
 		break;
-	case engine_type_e::MIATA_1996:
-		setFrankensteinMiata1996();
-		break;
+	case engine_type_e::ET_UNUSED_21:
 	case engine_type_e::CITROEN_TU3JP:
 		setCitroenBerlingoTU3JPConfiguration();
 		break;
diff --git a/firmware/controllers/algo/engine_types.h b/firmware/controllers/algo/engine_types.h
index 7789bee68d..451b8d5bbc 100644
--- a/firmware/controllers/algo/engine_types.h
+++ b/firmware/controllers/algo/engine_types.h
@@ -50,7 +50,7 @@ enum class engine_type_e : uint32_t {
 	// Frankenso board
 	FRANKENSO_MIATA_NA6_MAP = 41,
 	ET_UNUSED_20 = 20,
-	MIATA_1996 = 21,
+	ET_UNUSED_21 = 21,
 
 	FORD_ESCORT_GT = 14,