diff --git a/firmware/config/boards/GDI4/connectors/gdi4.yaml b/firmware/config/boards/GDI4/connectors/gdi4.yaml
index e31a9b8ee4..b72ad7747a 100644
--- a/firmware/config/boards/GDI4/connectors/gdi4.yaml
+++ b/firmware/config/boards/GDI4/connectors/gdi4.yaml
@@ -1,8 +1,92 @@
 pins:
+  - pin: 1a
+    function: Power Ground
+    color: black
+
+  - pin: 2a
+    function: Power Ground
+    color: black
+
+  - pin: 4a
+    function: +12v power
+    color: red
+
   - pin: 6a
     function: Aux Analog #0
     color: orange
 
+  - pin: 44a
+    function: Injector Control #1
+    color: blue
+
+  - pin: 45a
+    function: Injector Control #2
+    color: blue
+
+  - pin: 46a
+    function: Injector Control #3
+    color: blue
+
+  - pin: 47a
+    function: Injector Control #4
+    color: blue
+
+  - pin: 52a
+    function: CAN High
+    color: yellow
+
+  - pin: 53a
+    function: CAN Low
+    color: yellow
+
+  - pin: 90a
+    function: Injector Output #3 Negative
+    color: blue
+
+  - pin: 91a
+    function: Injector Output #3 Negative
+    color: blue
+
+  - pin: 92a
+    function: Injector Output #4 Negative
+    color: blue
+
+  - pin: 93a
+    function: Injector Output #4 Negative
+    color: blue
+
+  - pin: 94a
+    function: Injector Output #3 Positive
+    color: blue
+
+  - pin: 95a
+    function: Injector Output #3 Positive
+    color: blue
+
+  - pin: 96a
+    function: Injector Output #4 Positive
+    color: blue
+
+  - pin: 97a
+    function: Injector Output #4 Positive
+    color: blue
+
+  - pin: 114a
+    function: Injector Output #1 Negative
+    color: blue
+
+  - pin: 118a
+    function: Injector Output #1 Positive
+    color: blue
+
+  - pin: 119a
+    function: Injector Output #2 Negative
+    color: blue
+
+  - pin: 121a
+    function: Injector Output #2 Positive
+    color: blue
+
 
 info:
   title: GDI4