diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 8c8fc80204..33afd41043 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -1151,7 +1151,7 @@ int16_t tps2Max;Full throttle#2. tpsMax value as 10 bit ADC value. Not Voltage!\
 	bit unusedBit_495_9
 	bit unusedBit_495_10
 	bit useAuxSpeedForSlipRatio
-	bit unusedBit_495_12
+	bit useVssAsSecondWheelSpeed;VSS and auxSpeed1 or auxSpeed1 with auxSpeed2?
 	int16_t afterCrankingIACtaperDuration;This is the duration in cycles that the IAC will take to reach its normal idle position, it can be used to hold the idle higher for a few seconds after cranking to improve startup.;"cycles", 1, 0, 0, 5000, 0
 
 	int16_t iacByTpsTaper;IAC Value added when coasting and transitioning into idle.;"percent", 1, 0, 0, 500, 0
@@ -1631,7 +1631,8 @@ int8_t[TRACTION_CONTROL_ETB_DROP_SIZE x TRACTION_CONTROL_ETB_DROP_SIZE] traction
 int8_t[TRACTION_CONTROL_ETB_DROP_SIZE x TRACTION_CONTROL_ETB_DROP_SIZE] tractionControlTimingDrop;;"Deg", 1, 0, -100, 100, 0
 int8_t[TRACTION_CONTROL_ETB_DROP_SIZE x TRACTION_CONTROL_ETB_DROP_SIZE] tractionControlIgnitionSkip;;"%", 1, 0, 0, 100, 0
 
-uint8_t[150] mainUnusedEnd;;"units", 1, 0, 0, 1, 0
+float auxSpeed1Multiplier
+uint8_t[146] mainUnusedEnd;;"units", 1, 0, 0, 1, 0
 
 ! end of engine_configuration_s
 end_struct
diff --git a/firmware/tunerstudio/rusefi.input b/firmware/tunerstudio/rusefi.input
index 3941720480..78756d41ef 100644
--- a/firmware/tunerstudio/rusefi.input
+++ b/firmware/tunerstudio/rusefi.input
@@ -4700,7 +4700,9 @@ dialog = tcuControls, "Transmission Settings"
         field = dacOutputPins2,         dacOutputPins2
         field = "Read RPM matching VSS profile",    canInputBCM
         field = useSpiImu,              useSpiImu
+        field = auxSpeed1Multiplier,    auxSpeed1Multiplier
         field = useAuxSpeedForSlipRatio, useAuxSpeedForSlipRatio
+        field = useVssAsSecondWheelSpeed, useVssAsSecondWheelSpeed
 
 	dialog = mc33810Dialog, "MC33810 IGN/INJ driver"
 		field = "SPI settings"