diff --git a/firmware/hw_layer/can_hw.h b/firmware/hw_layer/can_hw.h
index 8fbbdf4478..9424502b12 100644
--- a/firmware/hw_layer/can_hw.h
+++ b/firmware/hw_layer/can_hw.h
@@ -2,7 +2,7 @@
  * @file	can_hw.h
  *
  * @date Dec 11, 2013
- * @author Andrey Belomutskiy, (c) 2012-2017
+ * @author Andrey Belomutskiy, (c) 2012-2019
  */
 
 #ifndef CAN_HW_H_
diff --git a/firmware/hw_layer/cdm_ion_sense.cpp b/firmware/hw_layer/cdm_ion_sense.cpp
new file mode 100644
index 0000000000..db7da39426
--- /dev/null
+++ b/firmware/hw_layer/cdm_ion_sense.cpp
@@ -0,0 +1,16 @@
+/*
+ * @file cdm_ion_sense.cpp
+ *
+ * See https://github.com/rusefi/rusefi_documentation/tree/master/misc/Saab_Trionic_8_Combustion%20Detection%20Module_on_Mazda_Miata_running_rusEfi
+ *
+ *  Created on: Dec 31, 2018
+ * @author Andrey Belomutskiy, (c) 2012-2019
+ */
+
+#include "cdm_ion_sense.h"
+
+void ionPostState(TunerStudioOutputChannels *tsOutputChannels) {
+
+}
+
+
diff --git a/firmware/hw_layer/cdm_ion_sense.h b/firmware/hw_layer/cdm_ion_sense.h
new file mode 100644
index 0000000000..d968647040
--- /dev/null
+++ b/firmware/hw_layer/cdm_ion_sense.h
@@ -0,0 +1,16 @@
+/*
+ * cdm_ion_sense.h
+ *
+ *  Created on: Dec 31, 2018
+ * @author Andrey Belomutskiy, (c) 2012-2019
+ */
+
+#ifndef HW_LAYER_CDM_ION_SENSE_H_
+#define HW_LAYER_CDM_ION_SENSE_H_
+
+#include "global.h"
+#include "tunerstudio_configuration.h"
+
+void ionPostState(TunerStudioOutputChannels *tsOutputChannels);
+
+#endif /* HW_LAYER_CDM_ION_SENSE_H_ */
diff --git a/firmware/hw_layer/hw_layer.mk b/firmware/hw_layer/hw_layer.mk
index f508f395b1..a780e396e5 100644
--- a/firmware/hw_layer/hw_layer.mk
+++ b/firmware/hw_layer/hw_layer.mk
@@ -29,6 +29,7 @@ HW_LAYER_EMS_CPP = $(HW_LAYER_EGT_CPP) \
 	$(PROJECT_DIR)/hw_layer/servo.cpp \
 	$(PROJECT_DIR)/hw_layer/io_pins.cpp \
 	$(PROJECT_DIR)/hw_layer/rtc_helper.cpp \
+	$(PROJECT_DIR)/hw_layer/cdm_ion_sense.cpp \
 	$(PROJECT_DIR)/hw_layer/backup_ram.cpp
 	
 ifeq ($(PROJECT_CPU),ST_STM32F7)