diff --git a/src/main/java/com/rusefi/can/SensorValue.java b/src/main/java/com/rusefi/can/SensorValue.java
index cbf3ca1..7eef2c5 100644
--- a/src/main/java/com/rusefi/can/SensorValue.java
+++ b/src/main/java/com/rusefi/can/SensorValue.java
@@ -16,4 +16,12 @@ public class SensorValue {
     public double getValue() {
         return value;
     }
+
+    @Override
+    public String toString() {
+        return "{" +
+                type +
+                ", value=" + value +
+                '}';
+    }
 }
diff --git a/src/main/java/com/rusefi/can/Util.java b/src/main/java/com/rusefi/can/Util.java
index 88e616a..31f5760 100644
--- a/src/main/java/com/rusefi/can/Util.java
+++ b/src/main/java/com/rusefi/can/Util.java
@@ -1,8 +1,11 @@
 package com.rusefi.can;
 
+import com.rusefi.can.decoders.PacketDecoder;
+import com.rusefi.can.decoders.bmw.BmwRegistry;
 import com.rusefi.can.reader.CANoeReader;
 import com.rusefi.can.writer.SteveWriter;
 
+import java.io.FileWriter;
 import java.io.IOException;
 import java.util.List;
 
@@ -12,8 +15,26 @@ public class Util {
 
         List<CANPacket> packetList = reader.readFile("Log2.log");
 
-        SteveWriter writer = new SteveWriter("loggerProgram0.log");
-        writer.write(packetList);
+//        SteveWriter writer = new SteveWriter("loggerProgram0.log");
+//        writer.write(packetList);
+
+        FileWriter fw = new FileWriter("sensors.txt");
+
+        for (CANPacket packet : packetList) {
+            PacketDecoder decoder = BmwRegistry.INSTANCE.decoderMap.get(packet.getId());
+            if (decoder == null)
+                continue;
+            PacketPayload payload = decoder.decode(packet);
+            if (payload == null)
+                continue;
+
+
+            for (SensorValue value : payload.getValues()) {
+                fw.write(packet.getTimeStamp() + "," + value + "\n");
+            }
+        }
+        fw.close();
+
 
     }
 }
diff --git a/src/main/java/com/rusefi/can/decoders/bmw/Bmw0AA.java b/src/main/java/com/rusefi/can/decoders/bmw/Bmw0AA.java
index 231e99f..242024e 100644
--- a/src/main/java/com/rusefi/can/decoders/bmw/Bmw0AA.java
+++ b/src/main/java/com/rusefi/can/decoders/bmw/Bmw0AA.java
@@ -14,7 +14,10 @@ public class Bmw0AA extends AbstractPacketDecoder {
     @Override
     public PacketPayload decode(CANPacket packet) {
         SensorValue pedal = new SensorValue(SensorType.PPS, packet.getUnsigned(3) * 0.39063);
-        SensorValue rpm = new SensorValue(SensorType.RPM, packet.getTwoBytes(4) * 0.25);
+        int rawRpm = packet.getTwoBytes(4);
+        if (rawRpm == 0xFFFF)
+            return null;
+        SensorValue rpm = new SensorValue(SensorType.RPM, rawRpm * 0.25);
         return new PacketPayload(packet.getTimeStamp(), pedal, rpm);
     }
 
diff --git a/src/main/java/com/rusefi/can/decoders/bmw/BmwRegistry.java b/src/main/java/com/rusefi/can/decoders/bmw/BmwRegistry.java
index 72b5715..6b92d76 100644
--- a/src/main/java/com/rusefi/can/decoders/bmw/BmwRegistry.java
+++ b/src/main/java/com/rusefi/can/decoders/bmw/BmwRegistry.java
@@ -6,7 +6,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 public class BmwRegistry {
-    BmwRegistry INSTANCE = new BmwRegistry();
+    public static final BmwRegistry INSTANCE = new BmwRegistry();
 
     public Map<Integer, PacketDecoder> decoderMap = new HashMap<>();