diff --git a/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp b/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp
index ebfd5de112..6ed69e00d9 100644
--- a/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp
+++ b/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp
@@ -148,6 +148,11 @@ void setBoardDefaultConfiguration(void) {
 	setInjectorPins();
 	setIgnitionPins();
 
+	engineConfiguration->etbIo[0].directionPin1 = GPIOC_6; // out_pwm2
+	engineConfiguration->etbIo[0].directionPin2 = GPIOC_7; // out_pwm3
+	engineConfiguration->etbIo[0].controlPin1 = GPIOA_8; // ETB_EN out_io12
+	CONFIG(etb_use_two_wires) = true;
+
 	engineConfiguration->isSdCardEnabled = true;
 
 	CONFIG(enableSoftwareKnock) = true;
diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index ea336c576c..73f4ff6cfc 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -732,7 +732,7 @@ end_struct
 struct dc_io
 	brain_pin_e directionPin1;
 	brain_pin_e directionPin2;
-	brain_pin_e controlPin1;
+	brain_pin_e controlPin1;Acts as EN pin in two-wire mode
 	brain_pin_e disablePin;
 end_struct