diff --git a/firmware/controllers/algo/defaults/default_base_engine.cpp b/firmware/controllers/algo/defaults/default_base_engine.cpp
index b5a6665595..32ea57d6c8 100644
--- a/firmware/controllers/algo/defaults/default_base_engine.cpp
+++ b/firmware/controllers/algo/defaults/default_base_engine.cpp
@@ -68,6 +68,7 @@ void setDefaultBaseEngine() {
 
 
 	engineConfiguration->tcuInputSpeedSensorTeeth = 1;
+	engineConfiguration->issFilterReciprocal = 2;
 
 	// Check engine light
 #if EFI_PROD_CODE
diff --git a/firmware/controllers/sensors/converters/input_shaft_speed_converter.h b/firmware/controllers/sensors/converters/input_shaft_speed_converter.h
index 04ef1cfc20..8bcad2d63f 100644
--- a/firmware/controllers/sensors/converters/input_shaft_speed_converter.h
+++ b/firmware/controllers/sensors/converters/input_shaft_speed_converter.h
@@ -4,6 +4,6 @@
 class InputShaftSpeedConverter : public SensorConverter {
 public:
 	SensorResult convert(float frequency) const override {
-		return frequency * 60 / engineConfiguration->vssToothCount;
+		return frequency * 60 / engineConfiguration->tcuInputSpeedSensorTeeth;
 	}
 };