diff --git a/src/main/java/com/rusefi/can/ByteRateOfChange.java b/src/main/java/com/rusefi/can/ByteRateOfChange.java
index 3bdbb66..caec21c 100644
--- a/src/main/java/com/rusefi/can/ByteRateOfChange.java
+++ b/src/main/java/com/rusefi/can/ByteRateOfChange.java
@@ -9,7 +9,6 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.PrintStream;
 import java.util.*;
-import java.util.concurrent.atomic.AtomicReference;
 
 public class ByteRateOfChange {
 
@@ -40,7 +39,9 @@ public class ByteRateOfChange {
 
         ps.close();
 
-        return new TraceReport(simpleFileName, statistics);
+        TraceReport traceReport = new TraceReport(simpleFileName, statistics);
+        traceReport.createMegaLogViewer(packets);
+        return traceReport;
     }
 
     public static String dualSid(int sid) {
@@ -78,6 +79,10 @@ public class ByteRateOfChange {
             this.index = index;
         }
 
+        private String getLogKey() {
+            return sid + "_" + index;
+        }
+
         @Override
         public boolean equals(Object o) {
             if (this == o) return true;
@@ -117,21 +122,26 @@ public class ByteRateOfChange {
             return statistics;
         }
 
-        public void createMegaLogViewer() {
+        public void createMegaLogViewer(List<CANPacket> packets) {
             Map<ByteId, BinaryLogEntry> entries = new HashMap<>();
 
             for (ByteId key : statistics.keySet()) {
-                entries.put(key, BinaryLogEntry.createFloatLogEntry(key.sid + "_" + key.index, Integer.toBinaryString(key.sid)));
+                entries.put(key, BinaryLogEntry.createFloatLogEntry(key.getLogKey(), Integer.toBinaryString(key.sid)));
             }
 
-            Map<String, Double> values = new HashMap<>();
-            AtomicReference<Long> time = new AtomicReference<>();
-            BinarySensorLog<BinaryLogEntry> log = new BinarySensorLog<>(o -> {
-                Double value = values.get(o.getName());
-                if (value == null)
-                    return 0.0;
-                return value;
-            }, entries.values(), time::get, "haha" + LoggingStrategy.MLG);
+            LoggingContext context = new LoggingContext();
+            BinarySensorLog<BinaryLogEntry> log = context.getBinaryLogEntryBinarySensorLog(entries.values(), simpleFileName + LoggingStrategy.MLG);
+
+
+            context.processPackets(packets, log, packetContent -> {
+                for (int i = 0; i < packetContent.getData().length; i++) {
+                    int value = packetContent.getData()[i] & 0xFF;
+
+                    String name = new ByteId(packetContent.getId(), i).getLogKey();
+                    context.values.put(name, (double) value);
+                }
+                return true;
+            });
         }
     }
 }
diff --git a/src/main/java/com/rusefi/can/LoggingContext.java b/src/main/java/com/rusefi/can/LoggingContext.java
new file mode 100644
index 0000000..a8e7b98
--- /dev/null
+++ b/src/main/java/com/rusefi/can/LoggingContext.java
@@ -0,0 +1,38 @@
+package com.rusefi.can;
+
+import com.rusefi.sensor_logs.BinaryLogEntry;
+import com.rusefi.sensor_logs.BinarySensorLog;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicReference;
+
+class LoggingContext {
+    Map<String, Double> values = new HashMap<>();
+    AtomicReference<Long> time = new AtomicReference<>();
+
+    BinarySensorLog<BinaryLogEntry> getBinaryLogEntryBinarySensorLog(Collection<BinaryLogEntry> entries, String outputFileName) {
+        return new BinarySensorLog<>(o -> {
+            Double value = this.values.get(o.getName());
+            if (value == null)
+                return 0.0;
+            return value;
+        }, entries, getTimeProvider(), outputFileName);
+    }
+
+    public void processPackets(List<CANPacket> packets, BinarySensorLog<BinaryLogEntry> log, LoggingStrategy.PacketLogger logger) {
+        for (CANPacket packetContent : packets) {
+            this.time.set((long) (packetContent.getTimeStamp() * 1000));
+            boolean needLine = logger.takeValues(packetContent);
+            if (needLine)
+                log.writeSensorLogLine();
+        }
+        log.close();
+    }
+
+    public BinarySensorLog.TimeProvider getTimeProvider() {
+        return () -> this.time.get();
+    }
+}
diff --git a/src/main/java/com/rusefi/can/LoggingStrategy.java b/src/main/java/com/rusefi/can/LoggingStrategy.java
index bb78b97..8d8f321 100644
--- a/src/main/java/com/rusefi/can/LoggingStrategy.java
+++ b/src/main/java/com/rusefi/can/LoggingStrategy.java
@@ -7,10 +7,7 @@ import com.rusefi.sensor_logs.BinaryLogEntry;
 import com.rusefi.sensor_logs.BinarySensorLog;
 
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
-import java.util.concurrent.atomic.AtomicReference;
 
 public class LoggingStrategy {
     public static final String MLG = ".mlg";
@@ -31,26 +28,25 @@ public class LoggingStrategy {
     public static void writeLog(DbcFile dbc, List<CANPacket> packets, String outputFileName) {
         List<BinaryLogEntry> entries = dbc.getFieldNameEntries();
 
-        Map<String, Double> values = new HashMap<>();
-        AtomicReference<Long> time = new AtomicReference<>();
-        BinarySensorLog<BinaryLogEntry> log = new BinarySensorLog<>(o -> {
-            Double value = values.get(o.getName());
-            if (value == null)
-                return 0.0;
-            return value;
-        }, entries, time::get, outputFileName);
+        LoggingContext context = new LoggingContext();
+        BinarySensorLog<BinaryLogEntry> log = context.getBinaryLogEntryBinarySensorLog(entries, outputFileName);
 
-        for (CANPacket packetContent : packets) {
+        PacketLogger logger = packetContent -> {
             DbcPacket packetMeta = dbc.findPacket(packetContent.getId());
             if (packetMeta == null)
-                continue;
+                return false;
 
-            time.set((long) (packetContent.getTimeStamp() * 1000));
             for (DbcField field : packetMeta.getFields()) {
-                values.put(field.getName(), field.getValue(packetContent));
+                context.values.put(field.getName(), field.getValue(packetContent));
             }
-            log.writeSensorLogLine();
-        }
-        log.close();
+            return true;
+        };
+
+        context.processPackets(packets, log, logger);
     }
+
+    interface PacketLogger {
+        boolean takeValues(CANPacket packetContent);
+    }
+
 }
diff --git a/src/main/java/com/rusefi/sensor_logs/BinarySensorLog.java b/src/main/java/com/rusefi/sensor_logs/BinarySensorLog.java
index c39de60..16c3a87 100644
--- a/src/main/java/com/rusefi/sensor_logs/BinarySensorLog.java
+++ b/src/main/java/com/rusefi/sensor_logs/BinarySensorLog.java
@@ -142,6 +142,7 @@ public class BinarySensorLog<T extends BinaryLogEntry> implements SensorLog, Aut
 
     @Override
     public void close() {
+        System.out.println("Finishing " + fileName);
         close(stream);
         stream = null;
     }