diff --git a/FV3 b/FV3
index e2108f00d..6814d1ad9 160000
--- a/FV3
+++ b/FV3
@@ -1 +1 @@
-Subproject commit e2108f00d5cf54227002978d74e94033127a141f
+Subproject commit 6814d1ad9cfca50a61eaede0a1b5a795eaa63305
diff --git a/tests/default_vars.sh b/tests/default_vars.sh
index cba4c7488..22c0f774a 100755
--- a/tests/default_vars.sh
+++ b/tests/default_vars.sh
@@ -467,6 +467,10 @@ export IAU_DRYMASSFIXER=.false.
 # Regional
 export WRITE_RESTART_WITH_BCS=.false.
 
+# Diagnostics
+export PRINT_DIFF_PGR=.false.
+
+# Coupling
 export coupling_interval_fast_sec=0
 }
 
diff --git a/tests/parm/gsd.nml.IN b/tests/parm/gsd.nml.IN
index df71eadb1..5d5699c81 100644
--- a/tests/parm/gsd.nml.IN
+++ b/tests/parm/gsd.nml.IN
@@ -208,6 +208,7 @@
        do_gsl_drag_tofd     = @[DO_GSL_DRAG_TOFD]
        do_ugwp_v1           = @[DO_UGWP_V1]
        do_ugwp_v1_orog_only = @[DO_UGWP_V1_OROG_ONLY]
+       print_diff_pgr       = @[PRINT_DIFF_PGR]
 /
 
 &gfdl_cloud_microphysics_nml
diff --git a/tests/tests/fv3_gsd_diag3d_debug b/tests/tests/fv3_gsd_diag3d_debug
index 735e29552..161afb57a 100644
--- a/tests/tests/fv3_gsd_diag3d_debug
+++ b/tests/tests/fv3_gsd_diag3d_debug
@@ -99,5 +99,7 @@ export LSM=3
 export LSOIL_LSM=9
 export KICE=9
 
+export PRINT_DIFF_PGR=.true.
+
 export WLCLK=30