diff --git a/reference/speeduino.ini b/reference/speeduino.ini
index 009ff753..52aecfcf 100644
--- a/reference/speeduino.ini
+++ b/reference/speeduino.ini
@@ -930,7 +930,7 @@ menuDialog = main
 ; constantName = "Help Text"
 ; These provide the context help in the dialog when these variables are used
   nCylinders  = "Cylinder count"
-  alternate   = ""
+  alternate   = "Whether or not the injectors should be fired at the same time. This setting is ignored when Sequential is selected below, however it will still affect the req_fuel value."
   engineType  = "Engines with an equal number of degrees between all firings (This is most engines) should select Even fire. Some 2 and 6 cylinder engines are Odd fire however."
   twoStroke   = "Four-Stroke (most engines), Two-stroke."
   nInjectors  = "Number of primary injectors."
diff --git a/speeduino/speeduino.ino b/speeduino/speeduino.ino
index 094391bb..2027c528 100644
--- a/speeduino/speeduino.ino
+++ b/speeduino/speeduino.ino
@@ -345,12 +345,21 @@ void setup()
       else { channel2IgnDegrees = configPage1.oddfire2; }
 
       //For alternating injection, the squirt occurs at different times for each channel
-      if(configPage1.injLayout == INJ_SEMISEQUENTIAL)
+      if(configPage1.injLayout == INJ_SEMISEQUENTIAL || configPage1.injLayout == INJ_PAIRED)
       {
         channel1InjDegrees = 0;
         channel2InjDegrees = channel2IgnDegrees; //Set to the same as the ignition degrees (Means there's no need for another if to check for oddfire)
+
+        if (!configPage1.injTiming) { channel1InjDegrees = channel2InjDegrees = 0; } //For simultaneous, all squirts happen at the same time
+      }
+      else if (configPage1.injLayout == INJ_SEQUENTIAL)
+      {
+        channel1InjDegrees = 0;
+        channel2InjDegrees = channel2IgnDegrees;
+
+        CRANK_ANGLE_MAX_INJ = 720;
+        req_fuel_uS = req_fuel_uS * 2;
       }
-      if (!configPage1.injTiming) { channel1InjDegrees = channel2InjDegrees = 0; } //For simultaneous, all squirts happen at the same time
 
       channel1InjEnabled = true;
       channel2InjEnabled = true;
@@ -381,11 +390,13 @@ void setup()
       }
 
       //For alternatiing injection, the squirt occurs at different times for each channel
-      if(configPage1.injLayout == INJ_SEMISEQUENTIAL  || configPage1.injLayout == INJ_PAIRED)
+      if(configPage1.injLayout == INJ_SEMISEQUENTIAL || configPage1.injLayout == INJ_PAIRED)
       {
         channel1InjDegrees = 0;
         channel2InjDegrees = 120;
         channel3InjDegrees = 240;
+
+        if (!configPage1.injTiming) { channel1InjDegrees = channel2InjDegrees = channel3InjDegrees = 0; } //For simultaneous, all squirts happen at the same time
       }
       else if (configPage1.injLayout == INJ_SEQUENTIAL)
       {
@@ -395,7 +406,6 @@ void setup()
         CRANK_ANGLE_MAX_INJ = 720;
         req_fuel_uS = req_fuel_uS * 2;
       }
-      if (!configPage1.injTiming) { channel1InjDegrees = channel2InjDegrees = channel3InjDegrees = 0; } //For simultaneous, all squirts happen at the same time
 
       channel1InjEnabled = true;
       channel2InjEnabled = true;
@@ -436,6 +446,8 @@ void setup()
       {
         channel1InjDegrees = 0;
         channel2InjDegrees = 180;
+
+        if (!configPage1.injTiming) { channel1InjDegrees = channel2InjDegrees = 0; } //For simultaneous, all squirts happen at the same time
       }
       else if (configPage1.injLayout == INJ_SEQUENTIAL)
       {
@@ -450,7 +462,6 @@ void setup()
         CRANK_ANGLE_MAX_INJ = 720;
         req_fuel_uS = req_fuel_uS * 2;
       }
-      if (!configPage1.injTiming) { channel1InjDegrees = channel2InjDegrees = 0; } //For simultaneous, all squirts happen at the same time
 
       //Check if injector staging is enabled
       if(configPage11.stagingEnabled == true)
@@ -549,6 +560,8 @@ void setup()
       break;
   }
 
+  if(CRANK_ANGLE_MAX_IGN == CRANK_ANGLE_MAX_INJ) { CRANK_ANGLE_MAX = CRANK_ANGLE_MAX_IGN; } //If both the injector max and ignition max angles are the same, make the overall system max this value
+
   switch(configPage2.sparkMode)
   {
     case IGN_MODE_WASTED: