diff --git a/firmware/config/boards/hellen/hellen-gm-e67/board_configuration.cpp b/firmware/config/boards/hellen/hellen-gm-e67/board_configuration.cpp
index a164d63f5e..0a3901389a 100644
--- a/firmware/config/boards/hellen/hellen-gm-e67/board_configuration.cpp
+++ b/firmware/config/boards/hellen/hellen-gm-e67/board_configuration.cpp
@@ -159,19 +159,6 @@ void setBoardDefaultConfiguration() {
 
 	engineConfiguration->enableSoftwareKnock = true;
 
-	// random values to have valid config
-	engineConfiguration->tpsMin = 0;
-	engineConfiguration->tpsMax = 1000;
-	// random values to have valid config
-	engineConfiguration->tps1SecondaryMin = 1000;
-	engineConfiguration->tps1SecondaryMax = 0;
-	// random values to have valid config
-	engineConfiguration->throttlePedalUpVoltage = 0;
-	engineConfiguration->throttlePedalWOTVoltage = 5.0;
-	// random values to have valid config
-	engineConfiguration->throttlePedalSecondaryUpVoltage = 5.0;
-	engineConfiguration->throttlePedalSecondaryWOTVoltage = 0.0;
-
 	engineConfiguration->ignitionMode = IM_INDIVIDUAL_COILS;
 	engineConfiguration->crankingInjectionMode = IM_SIMULTANEOUS;
 	engineConfiguration->injectionMode = IM_SEQUENTIAL;
diff --git a/firmware/config/engines/gm_ls_4.cpp b/firmware/config/engines/gm_ls_4.cpp
index 4477a85027..0709affb79 100644
--- a/firmware/config/engines/gm_ls_4.cpp
+++ b/firmware/config/engines/gm_ls_4.cpp
@@ -137,6 +137,7 @@ end
     )", efi::size(config->luaScript));
 
 	setPPSCalibration(0.51, 2.11, 1.01, 4.23);
+	setTPS1Calibration(880, 129, 118, 870);
 }
 
 void setProteusGmLs4() {