diff --git a/firmware/controllers/actuators/dc_motors.cpp b/firmware/controllers/actuators/dc_motors.cpp
index 3619cab9d4..0f0c0fcd10 100644
--- a/firmware/controllers/actuators/dc_motors.cpp
+++ b/firmware/controllers/actuators/dc_motors.cpp
@@ -64,6 +64,11 @@ public:
 		// Clamp to >100hz
 		int clampedFrequency = maxI(100, frequency);
 
+		if (clampedFrequency > ETB_HW_MAX_FREQUENCY) {
+			firmwareError(OBD_PCM_Processor_Fault, "Electronic throttle frequency too high, maximum %d hz", ETB_HW_MAX_FREQUENCY);
+			return;
+		}
+
 		if (useTwoWires) {
 			m_pinEnable.initPin("ETB Enable", pinEnable);
 
diff --git a/firmware/hw_layer/ports/stm32/stm32_common.cpp b/firmware/hw_layer/ports/stm32/stm32_common.cpp
index 66ebdb17e8..97c1e41198 100644
--- a/firmware/hw_layer/ports/stm32/stm32_common.cpp
+++ b/firmware/hw_layer/ports/stm32/stm32_common.cpp
@@ -177,10 +177,8 @@ public:
 
 		// If we have too few usable bits, we run out of resolution, so don't allow that either.
 		// 200 counts = 0.5% resolution
-		if (m_period < _2_MHZ / ETB_HW_MAX_FREQUENCY) {
-			firmwareError(CUSTOM_OBD_HIGH_FREQUENCY, "PWM Frequency too high %d limit %d hz on pin \"%s\"", frequency,
-					ETB_HW_MAX_FREQUENCY,
-					msg);
+		if (m_period < 200) {
+			firmwareError(CUSTOM_OBD_HIGH_FREQUENCY, "PWM Frequency too high %d hz on pin \"%s\"", frequency, msg);
 			return;
 		}
 
diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 3a67443455..6c7514cfc7 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -135,7 +135,7 @@ struct_no_prefix engine_configuration_s
 #define TCU_GEAR_COUNT 10
 
 ! Matt says: The problem is the driver chip. Tle9201 can't do 20k. The drivers are too slow. On purpose to reduce EMI
-#define ETB_HW_MAX_FREQUENCY 10000
+#define ETB_HW_MAX_FREQUENCY 3000
 #define ETB_COUNT 2
 #define DC_PER_STEPPER 2