diff --git a/speeduino/decoders.ino b/speeduino/decoders.ino
index bd04cf12..43e9b7ee 100644
--- a/speeduino/decoders.ino
+++ b/speeduino/decoders.ino
@@ -157,7 +157,7 @@ void triggerPri_missingTooth()
        {
          if(toothCurrentCount < (triggerActualTeeth) && (currentStatus.hasSync == true) ) { currentStatus.hasSync = false; } //This occurs when we're at tooth #1, but haven't seen all the other teeth. This indicates a signal issue so we flag lost sync so this will attempt to resync on the next revolution.
          //This is to handle a special case on startup where sync can be obtained and the system immediately thinks the revs have jumped:
-         //else if (currentStatus.hasSync == false && toothCurrentCount < checkSyncToothCount ) { triggerFilterTime = 0; } 
+         //else if (currentStatus.hasSync == false && toothCurrentCount < checkSyncToothCount ) { triggerFilterTime = 0; }
          else
          {
            toothCurrentCount = 1;
@@ -810,7 +810,7 @@ uint16_t getRPM_4G63()
   //Because these signals aren't even (Alternating 110 and 70 degrees), this needs a special function
   if(currentStatus.hasSync == true)
   {
-    if( currentStatus.RPM < (unsigned int)(configPage2.crankRPM * 100) )
+    if( currentStatus.RPM < ((unsigned int)configPage2.crankRPM * 100) )
     {
       int tempToothAngle;
       unsigned long toothTime;
@@ -823,6 +823,8 @@ uint16_t getRPM_4G63()
         interrupts();
         toothTime = toothTime * 36;
         tempRPM = ((unsigned long)tempToothAngle * 6000000UL) / toothTime;
+        revolutionTime = (10UL * toothTime) / tempToothAngle;
+
       }
     }
     else { tempRPM = stdGetRPM(); }
@@ -1096,7 +1098,7 @@ void triggerPri_Audi135()
 {
    curTime = micros();
    curGap = curTime - toothSystemLastToothTime;
-   if ( curGap > triggerFilterTime )
+   if ( (curGap > triggerFilterTime) || (currentStatus.startRevolutions == 0) )
    {
      toothSystemCount++;
 
@@ -1865,7 +1867,7 @@ void triggerPri_Subaru67()
    toothLastMinusOneToothTime = toothLastToothTime;
    toothLastToothTime = curTime;
 
-   if ( (currentStatus.hasSync == false) || configPage2.useResync)
+   if ( (currentStatus.hasSync == false) || configPage2.useResync || (currentStatus.startRevolutions == 0) )
    {
      //Sync is determined by counting the number of cam teeth that have passed between the crank teeth
      switch(secondaryToothCount)
@@ -1935,7 +1937,15 @@ void triggerSec_Subaru67()
 uint16_t getRPM_Subaru67()
 {
   //if(currentStatus.RPM < configPage2.crankRPM) { return crankingGetRPM(configPage2.triggerTeeth); }
-  return stdGetRPM();
+
+  uint16_t tempRPM = 0;
+  if(currentStatus.startRevolutions > 0)
+  {
+    //As the tooth count is over 720 degrees, we need to double the RPM value and halve the revolution time
+    tempRPM = stdGetRPM() << 1;
+    revolutionTime = revolutionTime >> 1; //Revolution time has to be divided by 2 as otherwise it would be over 720 degrees (triggerActualTeeth = nCylinders)
+  }
+  return tempRPM;
 }
 
 int getCrankAngle_Subaru67(int timePerDegree)
@@ -2011,7 +2021,7 @@ void triggerPri_Daihatsu()
   curTime = micros();
   curGap = curTime - toothLastToothTime;
 
-  //if ( curGap >= triggerFilterTime )
+  //if ( curGap >= triggerFilterTime || (currentStatus.startRevolutions == 0 )
   {
     toothSystemCount++;