diff --git a/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/PCanSandbox.java b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/PCanSandbox.java
index 7823aafe5e..7ef6249055 100644
--- a/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/PCanSandbox.java
+++ b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/PCanSandbox.java
@@ -51,19 +51,10 @@ public class PCanSandbox {
         System.out.println("****************************************");
 */
         LinkManager linkManager = new LinkManager();
-        BinaryProtocol bp = new BinaryProtocol(linkManager, tsStream);
-        linkManager.COMMUNICATION_EXECUTOR.submit(() -> {
-            if (tsStream.getDataBuffer().dropPending() != 0)
-                System.out.println("ERROR Extra data before CRC");
-            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
-//            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
-//            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
-            if (tsStream.getDataBuffer().dropPending() != 0)
-                System.out.println("ERROR Extra data after CRC");
-        });
+        SandboxCommon.verifyCrcNoPending(tsStream, linkManager);
+
+        ConfigurationImage ci = SandboxCommon.readImage(tsStream, linkManager);
 
-/*
-*/
     }
 
 }
diff --git a/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/SandboxCommon.java b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/SandboxCommon.java
new file mode 100644
index 0000000000..81c2a63db5
--- /dev/null
+++ b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/SandboxCommon.java
@@ -0,0 +1,63 @@
+package com.rusefi.binaryprotocol.test;
+
+import com.opensr5.ConfigurationImage;
+import com.rusefi.binaryprotocol.BinaryProtocol;
+import com.rusefi.binaryprotocol.BinaryProtocolState;
+import com.rusefi.config.generated.Fields;
+import com.rusefi.io.ConnectionStateListener;
+import com.rusefi.io.IoStream;
+import com.rusefi.io.LinkManager;
+import com.rusefi.io.serial.StreamConnector;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
+
+public class SandboxCommon {
+    static ConfigurationImage readImage(IoStream tsStream, LinkManager linkManager) throws InterruptedException {
+        AtomicReference<ConfigurationImage> configurationImageAtomicReference = new AtomicReference<>();
+        CountDownLatch imageLatch = new CountDownLatch(1);
+
+        StreamConnector streamConnector = new StreamConnector(linkManager, () -> tsStream);
+        linkManager.setConnector(streamConnector);
+        streamConnector.connectAndReadConfiguration(new BinaryProtocol.Arguments(false), new ConnectionStateListener() {
+            @Override
+            public void onConnectionEstablished() {
+                System.out.println("onConnectionEstablished");
+
+                BinaryProtocol currentStreamState = linkManager.getCurrentStreamState();
+                if (currentStreamState == null) {
+                    System.out.println("No BinaryProtocol");
+                } else {
+                    BinaryProtocolState binaryProtocolState = currentStreamState.getBinaryProtocolState();
+                    ConfigurationImage ci = binaryProtocolState.getControllerConfiguration();
+                    configurationImageAtomicReference.set(ci);
+                    imageLatch.countDown();
+                }
+            }
+
+            @Override
+            public void onConnectionFailed() {
+                System.out.println("onConnectionFailed");
+            }
+        });
+
+        imageLatch.await(1, TimeUnit.MINUTES);
+        ConfigurationImage ci = configurationImageAtomicReference.get();
+        System.out.println("Got ConfigurationImage " + ci + ", " + ci.getSize());
+        return ci;
+    }
+
+    static void verifyCrcNoPending(IoStream tsStream, LinkManager linkManager) {
+        BinaryProtocol bp = new BinaryProtocol(linkManager, tsStream);
+        linkManager.COMMUNICATION_EXECUTOR.submit(() -> {
+            if (tsStream.getDataBuffer().dropPending() != 0)
+                System.out.println("ERROR Extra data before CRC");
+            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
+//            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
+//            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
+            if (tsStream.getDataBuffer().dropPending() != 0)
+                System.out.println("ERROR Extra data after CRC");
+        });
+    }
+}
diff --git a/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/SimulatorTcpSandbox.java b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/SimulatorTcpSandbox.java
index 40d7a2035c..8940fb633c 100644
--- a/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/SimulatorTcpSandbox.java
+++ b/java_console/io/src/test/java/com/rusefi/binaryprotocol/test/SimulatorTcpSandbox.java
@@ -2,19 +2,11 @@ package com.rusefi.binaryprotocol.test;
 
 import com.opensr5.ConfigurationImage;
 import com.rusefi.binaryprotocol.BinaryProtocol;
-import com.rusefi.binaryprotocol.BinaryProtocolState;
-import com.rusefi.config.generated.Fields;
-import com.rusefi.io.ConnectionStateListener;
-import com.rusefi.io.IoStream;
 import com.rusefi.io.LinkManager;
-import com.rusefi.io.serial.StreamConnector;
 import com.rusefi.io.tcp.TcpIoStream;
-import jdk.nashorn.internal.runtime.regexp.joni.constants.Arguments;
 
 import java.io.IOException;
 import java.net.Socket;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.atomic.AtomicReference;
 
 import static com.rusefi.io.tcp.TcpConnector.DEFAULT_PORT;
 import static com.rusefi.io.tcp.TcpConnector.LOCALHOST;
@@ -27,51 +19,11 @@ public class SimulatorTcpSandbox {
         TcpIoStream tsStream = new TcpIoStream("sandbox", s);
 
         LinkManager linkManager = new LinkManager();
-        verifyCrcNoPending(tsStream, linkManager);
+        SandboxCommon.verifyCrcNoPending(tsStream, linkManager);
 
-        AtomicReference<ConfigurationImage> configurationImageAtomicReference = new AtomicReference<>();
-        CountDownLatch imageLatch = new CountDownLatch(1);
+        ConfigurationImage ci = SandboxCommon.readImage(tsStream, linkManager);
 
-        StreamConnector streamConnector = new StreamConnector(linkManager, () -> tsStream);
-        linkManager.setConnector(streamConnector);
-        streamConnector.connectAndReadConfiguration(new BinaryProtocol.Arguments(false), new ConnectionStateListener() {
-            @Override
-            public void onConnectionEstablished() {
-                System.out.println("onConnectionEstablished");
-
-                BinaryProtocol currentStreamState = linkManager.getCurrentStreamState();
-                if (currentStreamState == null) {
-                    System.out.println("No BinaryProtocol");
-                } else {
-                    BinaryProtocolState binaryProtocolState = currentStreamState.getBinaryProtocolState();
-                    ConfigurationImage ci = binaryProtocolState.getControllerConfiguration();
-                    configurationImageAtomicReference.set(ci);
-                    imageLatch.countDown();
-                }
-            }
-
-            @Override
-            public void onConnectionFailed() {
-                System.out.println("onConnectionFailed");
-            }
-        });
-
-        imageLatch.await();
-        ConfigurationImage ci = configurationImageAtomicReference.get();
-        System.out.println("Got ConfigurationImage " + ci + ", " + ci.getSize());
         System.exit(0);
     }
 
-    private static void verifyCrcNoPending(IoStream tsStream, LinkManager linkManager) {
-        BinaryProtocol bp = new BinaryProtocol(linkManager, tsStream);
-        linkManager.COMMUNICATION_EXECUTOR.submit(() -> {
-            if (tsStream.getDataBuffer().dropPending() != 0)
-                System.out.println("ERROR Extra data before CRC");
-            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
-//            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
-//            bp.getCrcFromController(Fields.TOTAL_CONFIG_SIZE);
-            if (tsStream.getDataBuffer().dropPending() != 0)
-                System.out.println("ERROR Extra data after CRC");
-        });
-    }
 }