From d40f3d5c1f71e460b164635ef36ec5130197987b Mon Sep 17 00:00:00 2001
From: Ann Almgren <asalmgren@lbl.gov>
Date: Fri, 21 Aug 2026 09:26:03 -0700
Subject: [PATCH] fix issue 169

---
 src/utilities/io.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/utilities/io.cpp b/src/utilities/io.cpp
index 0604116d..7051030c 100644
--- a/src/utilities/io.cpp
+++ b/src/utilities/io.cpp
@@ -574,7 +574,13 @@ void incflo::WritePlotVariables(Vector<std::string> vars, const std::string& plo
         else if (vars[n] == "error_p") {
             int icomp_err_p = AMREX_SPACEDIM;
             for (int lev = 0; lev <= finest_level; ++lev)
-                amrex::average_node_to_cellcenter(mf[lev], icomp, m_leveldata[lev]->p_nd, 0, 1);
+            {
+                if (m_use_cc_proj) {
+                    MultiFab::Copy(mf[lev], m_leveldata[lev]->p_cc, 0, icomp, 1, 0);
+                } else {
+                    amrex::average_node_to_cellcenter(mf[lev], icomp, m_leveldata[lev]->p_nd, 0, 1);
+                }
+            }
 
             Real offset = mf[0].sum(icomp,true);
             ParallelDescriptor::ReduceRealSum(offset);