diff --git a/firmware/config/engines/bmw_e34.cpp b/firmware/config/engines/bmw_e34.cpp
index 6ecb8357ac..0626394663 100644
--- a/firmware/config/engines/bmw_e34.cpp
+++ b/firmware/config/engines/bmw_e34.cpp
@@ -40,6 +40,7 @@ void setBmwE43(engine_configuration_s *engineConfiguration) {
 
 //	bc->isFastAdcEnabled = true;
 
+	bc->ignitionPinMode = OM_INVERTED;
 	bc->ignitionPins[0] = GPIOC_7; // #1
 	bc->ignitionPins[1] = GPIO_UNASSIGNED; // #2
 	bc->ignitionPins[2] = GPIOE_4; // #3
@@ -47,6 +48,8 @@ void setBmwE43(engine_configuration_s *engineConfiguration) {
 	bc->ignitionPins[4] = GPIOC_9; // #5
 	bc->ignitionPins[5] = GPIO_UNASSIGNED; // #6
 
+	bc->injectionPinMode = OM_INVERTED;
+
 	// emulating this 60-0 takes some resources, let's keep it slow by default
 	// rpm 200
 	bc->triggerSimulatorFrequency = 200;
diff --git a/firmware/config/engines/mazda_miata.cpp b/firmware/config/engines/mazda_miata.cpp
index c85d3a074e..cff5238c88 100644
--- a/firmware/config/engines/mazda_miata.cpp
+++ b/firmware/config/engines/mazda_miata.cpp
@@ -302,6 +302,9 @@ void setMiata1994_d(engine_configuration_s *engineConfiguration, board_configura
 	boardConfiguration->injectionPins[1] = GPIOE_2;
 	boardConfiguration->injectionPins[2] = GPIOB_8;
 	boardConfiguration->injectionPins[3] = GPIOB_7;
+
+	// todo: add the diode? change idle valve logic?
+	boardConfiguration->idleValvePin = GPIO_UNASSIGNED;
 }
 
 void setMiata1994_s(engine_configuration_s *engineConfiguration, board_configuration_s *boardConfiguration) {