diff --git a/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/GVLs/GVL_LFE_VAC_PMPS.TcGVL b/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/GVLs/GVL_LFE_VAC_PMPS.TcGVL
index c9c0594..78374bc 100644
--- a/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/GVLs/GVL_LFE_VAC_PMPS.TcGVL
+++ b/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/GVLs/GVL_LFE_VAC_PMPS.TcGVL
@@ -20,7 +20,7 @@ VAR_GLOBAL
     {attribute 'pytmc' := '
     pv: PLC:LFE:VAC:FFO:04
     '}
-    g_FastFaultOutput4  :   FB_HardwareFFOutput :=(i_sNetID:='172.21.88.66.1.1');	//FFO for ST1L0_XTES's Downstream Components
+    g_FastFaultOutput4  :   FB_HardwareFFOutput :=(i_sNetID:='172.21.88.66.1.1');	// FFO for valves that are downstream of the optics and upstream of ST1L1 on the L1 line.
 
     {attribute 'pytmc' := '
     pv: PLC:LFE:VAC:RESET:FF1
diff --git a/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/POUs/MAIN.TcPOU b/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/POUs/MAIN.TcPOU
index 00f30d7..98bcb54 100644
--- a/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/POUs/MAIN.TcPOU
+++ b/plc_lfe_vac/plc_lfe_vac/plc_lfe_vac/POUs/MAIN.TcPOU
@@ -307,7 +307,7 @@ XPP_DS_Gauge.rPRESS := XPP_Downstream_Gauge.rPRESS;//XPP_Modbus_Gauge.VG.rPRESS;
     i_sDevName:= 'BT2L0:PLEG:VGC:01',
     iq_stValve=> ,
     xMPS_OK=> ,
-    io_fbFFHWO:= g_FastFaultOutput1, // TODO(josh): ask maggie if this is sufficient because we have connected the FF
+    io_fbFFHWO:= g_FastFaultOutput4,
     fbArbiter:= g_fbArbiter1 );
 
     MR2L0_HOMS_VGC_01(