diff --git a/speeduino/sensors.ino b/speeduino/sensors.ino
index 4066023c..6681f900 100644
--- a/speeduino/sensors.ino
+++ b/speeduino/sensors.ino
@@ -200,11 +200,28 @@ void readTPS()
     byte tempTPS = fastMap1023toX(analogRead(pinTPS), 255); //Get the current raw TPS ADC value and map it into a byte
   #endif
   currentStatus.tpsADC = ADC_FILTER(tempTPS, ADCFILTER_TPS, currentStatus.tpsADC);
-  //Check that the ADC values fall within the min and max ranges (Should always be the case, but noise can cause these to fluctuate outside the defined range).
   byte tempADC = currentStatus.tpsADC; //The tempADC value is used in order to allow TunerStudio to recover and redo the TPS calibration if this somehow gets corrupted
-  if (currentStatus.tpsADC < configPage2.tpsMin) { tempADC = configPage2.tpsMin; }
-  else if(currentStatus.tpsADC > configPage2.tpsMax) { tempADC = configPage2.tpsMax; }
-  currentStatus.TPS = map(tempADC, configPage2.tpsMin, configPage2.tpsMax, 0, 100); //Take the raw TPS ADC value and convert it into a TPS% based on the calibrated values
+
+  if(configPage2.tpsMax > configPage2.tpsMin)
+  {
+    //Check that the ADC values fall within the min and max ranges (Should always be the case, but noise can cause these to fluctuate outside the defined range).
+    if (currentStatus.tpsADC < configPage2.tpsMin) { tempADC = configPage2.tpsMin; }
+    else if(currentStatus.tpsADC > configPage2.tpsMax) { tempADC = configPage2.tpsMax; }
+    currentStatus.TPS = map(tempADC, configPage2.tpsMin, configPage2.tpsMax, 0, 100); //Take the raw TPS ADC value and convert it into a TPS% based on the calibrated values
+  }
+  else
+  {
+    //This case occurs when the TPS +5v and gnd are wired backwards, but the user wishes to retain this configuration.
+    //In such a case, tpsMin will be greater then tpsMax and hence checks and mapping needs to be reversed
+
+    tempADC = 255 - currentStatus.tpsADC; //Reverse the ADC values
+
+    //All checks below are reversed from the standard case above
+    if (tempADC > configPage2.tpsMin) { tempADC = configPage2.tpsMin; }
+    else if(tempADC < configPage2.tpsMax) { tempADC = configPage2.tpsMax; }
+    currentStatus.TPS = map(tempADC, configPage2.tpsMax, configPage2.tpsMin, 0, 100);
+  }
+
   currentStatus.TPS_time = currentLoopTime;
 }