diff --git a/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-blue.yaml b/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-blue.yaml
index 710a04c6d2..025afb628c 100644
--- a/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-blue.yaml
+++ b/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-blue.yaml
@@ -1,4 +1,12 @@
 pins:
+  - pin: 12
+    # H144_OUT_IO11
+    id: G2
+    class: outputs
+    function: MIL Check Engine
+    type: hs
+    ts_name: C1-12 Check Engine
+
   - pin: 13
     # H144_OUT_IO5
     id: D2
@@ -7,6 +15,22 @@ pins:
     type: hs
     ts_name: C1-13 - Fuel Pump
 
+  - pin: 19
+# H144_IN_VBATT
+    id: EFI_ADC_5
+    class: analog_inputs
+    function: +12V
+    ts_name: C1-19 Battery Sense
+    type: 12v
+
+  - pin: 25
+    # H144_OUT_PWM7
+    id: D15
+    class: outputs
+    function: Tachometer Output
+    type: hs
+    ts_name: C1-25 Tach
+
   - pin: 26
     # H144_OUT_IO6
     id: G11
diff --git a/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-grey.yaml b/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-grey.yaml
index 65a61cc850..1cea6b1fb4 100644
--- a/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-grey.yaml
+++ b/firmware/config/boards/hellen/hellen-gm-e67/connectors/gm-e67-grey.yaml
@@ -3,6 +3,14 @@ pins:
     function: CAN bus low
     type: can
 
+  - pin: 49
+    # H144_OUT_IO12
+    id: A8
+    class: outputs
+    function: Radiator Fan Relay
+    type: hs
+    ts_name: C3-49 - Fan Relay
+
   - pin: 53
     function: CAN bus high
     type: can
@@ -22,5 +30,32 @@ pins:
     type: av
     class: analog_inputs
     ts_name: C3-56 - IAT
-    function: CLT
+    function: IAT
+    color: purple
+
+  - pin: 57
+    # H144_IN_AUX4
+    id: EFI_ADC_7
+    type: av
+    class: analog_inputs
+    ts_name: C3-57 - A/C Pressure
+    function: A/C Pressure
+    color: purple
+
+  - pin: 58
+    # H144_IN_MAP3
+    id: EFI_ADC_2
+    type: av
+    class: analog_inputs
+    ts_name: C3-58 - Baro
+    function: Baro Pressure
+    color: purple
+
+  - pin: 59
+    # H144_IN_MAP2
+    id: EFI_ADC_11
+    type: av
+    class: analog_inputs
+    ts_name: C3-59 - MAP
+    function: MAP
     color: purple