diff --git a/speeduino/init.cpp b/speeduino/init.cpp
index 55dad115..38fe1daf 100644
--- a/speeduino/init.cpp
+++ b/speeduino/init.cpp
@@ -3041,6 +3041,16 @@ void setPinMapping(byte boardID)
       pinMode(pinBat, INPUT);
       pinMode(pinBaro, INPUT);
     #endif
+  #elif defined(CORE_TEENSY41)
+    //Teensy 4.1 has a weak pull down resistor that needs to be disabled for all analog pins. 
+    pinMode(pinMAP, INPUT_DISABLE);
+    pinMode(pinO2, INPUT_DISABLE);
+    pinMode(pinO2_2, INPUT_DISABLE);
+    pinMode(pinTPS, INPUT_DISABLE);
+    pinMode(pinIAT, INPUT_DISABLE);
+    pinMode(pinCLT, INPUT_DISABLE);
+    pinMode(pinBat, INPUT_DISABLE);
+    pinMode(pinBaro, INPUT_DISABLE);
   #endif
 
   //Each of the below are only set when their relevant function is enabled. This can help prevent pin conflicts that users aren't aware of with unused functions