diff --git a/firmware/controllers/actuators/electronic_throttle.cpp b/firmware/controllers/actuators/electronic_throttle.cpp
index c75a27c76a..289567b0d0 100644
--- a/firmware/controllers/actuators/electronic_throttle.cpp
+++ b/firmware/controllers/actuators/electronic_throttle.cpp
@@ -330,6 +330,12 @@ expected<percent_t> EtbController::getSetpointEtb() {
 		targetPosition = interpolateClamped(etbRpmLimit, targetPosition, fullyLimitedRpm, 0, rpm);
 	}
 
+	float minPosition = engineConfiguration->etbMinimumPosition;
+	if (minPosition < 0.01) {
+		// compatibility with legacy tunes, todo: remove in Nov of 2022
+		minPosition = 1;
+	}
+
 	// Keep the throttle just barely off the lower stop, and less than the user-configured maximum
 	float maxPosition = engineConfiguration->etbMaximumPosition;
 
@@ -341,7 +347,7 @@ expected<percent_t> EtbController::getSetpointEtb() {
 		maxPosition = minF(maxPosition, 100);
 	}
 
-	targetPosition = clampF(1, targetPosition, maxPosition);
+	targetPosition = clampF(minPosition, targetPosition, maxPosition);
 
 #if EFI_TUNER_STUDIO
 	if (m_function == ETB_Throttle1) {
diff --git a/firmware/controllers/algo/defaults/default_base_engine.cpp b/firmware/controllers/algo/defaults/default_base_engine.cpp
index 32ea57d6c8..95259939a9 100644
--- a/firmware/controllers/algo/defaults/default_base_engine.cpp
+++ b/firmware/controllers/algo/defaults/default_base_engine.cpp
@@ -66,6 +66,8 @@ void setDefaultBaseEngine() {
 	engineConfiguration->tachPulseDuractionMs = 0.5;
 	engineConfiguration->tachPulsePerRev = 1;
 
+	engineConfiguration->etbMinimumPosition = 1;
+	engineConfiguration->etbMaximumPosition = 100;
 
 	engineConfiguration->tcuInputSpeedSensorTeeth = 1;
 	engineConfiguration->issFilterReciprocal = 2;
diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 294a82872a..90aa656a7d 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -108,12 +108,6 @@ struct_no_prefix engine_configuration_s
 ! see 'blockingFactor' in rusefi.ini
 #define BLOCKING_FACTOR 256
 
-! Back in the day we wanted enums to be 32 bit integers.
-! as of 2020 preference is with ' __attribute__ ((__packed__))' allowing one-byte enums
-! todo: Technical debt: ENUM_32_BITS #3874
-#define ENUM_16_BITS 60000
-#define ENUM_32_BITS 2000000000
-
 #define AUX_ANALOG_INPUT_COUNT 8
 
 #define LUA_PWM_COUNT 8