diff --git a/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp b/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp
index d875ab2f0f..b97fc8b804 100644
--- a/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp
+++ b/firmware/config/boards/hellen/hellen121vag/board_configuration.cpp
@@ -163,9 +163,6 @@ void setBoardDefaultConfiguration(void) {
 
 	CONFIG(enableSoftwareKnock) = true;
 
-	engineConfiguration->canTxPin = GPIOD_1;
-	engineConfiguration->canRxPin = GPIOD_0;
-
 	engineConfiguration->fuelPumpPin = GPIOH_14;	// 65 - Fuel Pump
 	engineConfiguration->malfunctionIndicatorPin = GPIOG_4; // 47 - CEL
 	engineConfiguration->tachOutputPin = GPIOD_13; // 37 - TACH
diff --git a/firmware/config/boards/hellen/hellen128/board_configuration.cpp b/firmware/config/boards/hellen/hellen128/board_configuration.cpp
index 0db6a89dfb..3aa108edd7 100644
--- a/firmware/config/boards/hellen/hellen128/board_configuration.cpp
+++ b/firmware/config/boards/hellen/hellen128/board_configuration.cpp
@@ -149,9 +149,6 @@ void setBoardDefaultConfiguration(void) {
 
 	CONFIG(enableSoftwareKnock) = true;
 
-	engineConfiguration->canTxPin = GPIOD_1;
-	engineConfiguration->canRxPin = GPIOD_0;
-
 	engineConfiguration->fuelPumpPin = GPIOG_2;	// OUT_IO9
 	engineConfiguration->idle.solenoidPin = GPIOD_14;	// OUT_PWM5
 	engineConfiguration->fanPin = GPIOD_12;	// OUT_PWM8
diff --git a/firmware/config/boards/hellen/hellen64_miataNA6_94/board_configuration.cpp b/firmware/config/boards/hellen/hellen64_miataNA6_94/board_configuration.cpp
index dbe7d31716..d4962feaab 100644
--- a/firmware/config/boards/hellen/hellen64_miataNA6_94/board_configuration.cpp
+++ b/firmware/config/boards/hellen/hellen64_miataNA6_94/board_configuration.cpp
@@ -148,9 +148,6 @@ void setBoardDefaultConfiguration(void) {
 
 	CONFIG(enableSoftwareKnock) = true;
 
-	engineConfiguration->canTxPin = GPIOD_1;
-	engineConfiguration->canRxPin = GPIOD_0;
-
 	engineConfiguration->acRelayPin = GPIOH_15; // 1J - AC Relay
 	engineConfiguration->fuelPumpPin = GPIOG_2;	// OUT_IO9
 	engineConfiguration->idle.solenoidPin = GPIOD_14;	// OUT_PWM5
diff --git a/firmware/config/boards/hellen/hellen72/board_configuration.cpp b/firmware/config/boards/hellen/hellen72/board_configuration.cpp
index f39c2659a9..dcd74a627b 100644
--- a/firmware/config/boards/hellen/hellen72/board_configuration.cpp
+++ b/firmware/config/boards/hellen/hellen72/board_configuration.cpp
@@ -149,9 +149,6 @@ void setBoardDefaultConfiguration(void) {
 
 	CONFIG(enableSoftwareKnock) = true;
 
-	engineConfiguration->canTxPin = GPIOD_1;
-	engineConfiguration->canRxPin = GPIOD_0;
-
 	engineConfiguration->acRelayPin = GPIOH_15;
 	engineConfiguration->acSwitch = GPIOB_0;
 	engineConfiguration->acSwitchMode = PI_PULLUP;