diff --git a/firmware/tunerstudio/rusefi.input b/firmware/tunerstudio/rusefi.input
index bc78d6ca82..28f302fd70 100644
--- a/firmware/tunerstudio/rusefi.input
+++ b/firmware/tunerstudio/rusefi.input
@@ -2011,7 +2011,7 @@ cmd_set_engine_type_default					= "@@TS_IO_TEST_COMMAND_char@@\x00\x31\x00\x00"
 		field = "Crank Sensor (Primary channel)", 		triggerInputPins1, 1, { !(twoStroke == 1 || ( !(@@TRIGGER_CRANK_BASED@@) && ( ( (@@TRIGGER_TYPE_WITHOUT_KNOWN_LOCATION@@) && skippedWheelOnCam) || !(@@TRIGGER_TYPE_WITHOUT_KNOWN_LOCATION@@)  ) )) }
 
 		field = "Invert Primary",						invertPrimaryTriggerSignal
-		field = "Secondary channel", 					triggerInputPins2,            { triggerInputPins1 != 0 &&                           (@@TRIGGER_TYPE_WITH_SECOND_WHEEL@@) }
+		field = "Secondary channel", 					triggerInputPins2,            { triggerInputPins2 != 0 || (triggerInputPins1 != 0 &&                           (@@TRIGGER_TYPE_WITH_SECOND_WHEEL@@) ) }
 		field = "Invert Secondary",				    	invertSecondaryTriggerSignal, {                           triggerInputPins2 != 0 && (@@TRIGGER_TYPE_WITH_SECOND_WHEEL@@) }
 		field = "#VVT or Cam for 60/2 goes below"
 		field = "#If your engine has no exhaust cam sensor, use intake cam inputs"