diff --git a/reference/speeduino.ini b/reference/speeduino.ini
index 7c0f73f9..93ec9432 100644
--- a/reference/speeduino.ini
+++ b/reference/speeduino.ini
@@ -200,7 +200,7 @@ page = 4
       IgHold     = scalar, U08,      4,         "",          1,        0,     0,     100,        0
       TrigEdge   = bits,   U08,      5[0:0],    "Leading", "Trailing"
       TrigSpeed  = bits,   U08,      5[1:1],    "Crank Speed", "Cam Speed"
-      IgInv      = bits,   U08,      5[2:2],    "No",        "Yes"
+      IgInv      = bits,   U08,      5[2:2],    "Going Low",        "Going High"
       oddfire    = bits,   U08,      5[3:3],    "No",        "Yes"
       TrigPattern= bits,   U08,      5[4:7],    "Missing Tooth", "Basic Distributor", "Dual Wheel", "GM 7X", "4G63 / Miata", "GM 24X", "Jeep 2000", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID"
       IdleAdv    = scalar, U08,      6,         "Deg",       0.352,-28.4,  -10, 80,  0
@@ -601,7 +601,7 @@ page = 7
       topicHelp = Shelp3
       field = "Cranking advance Angle",       CrankAng
       ;field = "Hold Ignition",                IgHold
-      field = "Spark Output Inverted (see F1)",        IgInv
+      field = "Spark Outputs triggers",        IgInv
       field = ""
       field = "Fixed Angle (0 = use map)",  FixAng
       ;field = "Trim Angle",                   Trim
diff --git a/speeduino.ino b/speeduino.ino
index d9d1355e..bbb411b8 100644
--- a/speeduino.ino
+++ b/speeduino.ino
@@ -264,12 +264,12 @@ void setup()
       //These may both need to change, not sure
       if(configPage2.TrigEdge == 0)
       {
-        attachInterrupt(triggerInterrupt, trigger, RISING);  // Attach the crank trigger wheel interrupt (Hall sensor drags to ground when triggering)
+        attachInterrupt(triggerInterrupt, trigger, CHANGE);  // Attach the crank trigger wheel interrupt (Hall sensor drags to ground when triggering)
         attachInterrupt(triggerInterrupt2, triggerSec_4G63, FALLING);
       }
       else
       {
-        attachInterrupt(triggerInterrupt, trigger, FALLING); // Primary trigger connects to 
+        attachInterrupt(triggerInterrupt, trigger, CHANGE); // Primary trigger connects to 
         attachInterrupt(triggerInterrupt2, triggerSec_4G63, RISING);
       }