diff --git a/firmware/config/engines/sachs.cpp b/firmware/config/engines/sachs.cpp
index 3e7a528671..ed3ab4a753 100644
--- a/firmware/config/engines/sachs.cpp
+++ b/firmware/config/engines/sachs.cpp
@@ -23,14 +23,15 @@ void setSachs(engine_configuration_s *engineConfiguration) {
 	 * We treat the trigger as 1/0 toothed wheel
 	 */
 	engineConfiguration->trigger.type = TT_TOOTHED_WHEEL;
-	engineConfiguration->trigger.customTotalToothCount = 1;
-	engineConfiguration->trigger.customSkippedToothCount = 0;
+	engineConfiguration->trigger.customTotalToothCount = 50;
+	engineConfiguration->trigger.customSkippedToothCount = 2;
 
 	engineConfiguration->hasIatSensor = false;
 	engineConfiguration->hasMapSensor = false;
 	engineConfiguration->hasBaroSensor = false;
 	engineConfiguration->hasAfrSensor = false;
 	engineConfiguration->hasCltSensor = false;
+	boardConfiguration->useSerialPort = false;
 
 	// Frankenstein analog input #1: PA1 adc1
 	// Frankenstein analog input #2: PA3 adc3 TPS
@@ -70,5 +71,8 @@ void setSachs(engine_configuration_s *engineConfiguration) {
 
 	boardConfiguration->triggerInputPins[0] = GPIOA_5;
 	boardConfiguration->triggerInputPins[1] = GPIOC_6;
+
+	boardConfiguration->injectionPins[0] = GPIOC_15;
+
 }
 
diff --git a/firmware/console/binary/tunerstudio_io.cpp b/firmware/console/binary/tunerstudio_io.cpp
index fa3cf60a0b..21d65b505d 100644
--- a/firmware/console/binary/tunerstudio_io.cpp
+++ b/firmware/console/binary/tunerstudio_io.cpp
@@ -32,7 +32,7 @@ void startTsPort(void) {
 		 * This method contains a long delay, that's the reason why this is not done on the main thread
 		 */
 		usb_serial_start();
-	} else {
+	} else if (boardConfiguration->useSerialPort) {
 
 		print("TunerStudio over USART");
 		mySetPadMode("tunerstudio rx", TS_SERIAL_RX_PORT, TS_SERIAL_RX_PIN, PAL_MODE_ALTERNATE(TS_SERIAL_AF));
diff --git a/firmware/controllers/settings.cpp b/firmware/controllers/settings.cpp
index 19bbcc66ea..d93779ddd1 100644
--- a/firmware/controllers/settings.cpp
+++ b/firmware/controllers/settings.cpp
@@ -494,6 +494,7 @@ static void setTriggerType(int value) {
 }
 
 static void setToothedWheel(int total, int skipped) {
+	scheduleMsg(&logger, "toothed: total=%d/skipped=%d", total, skipped);
 	setToothedWheelConfiguration(&engine->triggerShape, total, skipped, engineConfiguration);
 //	initializeTriggerShape(&logger, engineConfiguration, engineConfiguration2);
 	incrementGlobalConfigurationVersion();
diff --git a/firmware/svnversion.h b/firmware/svnversion.h
index e61aa20cce..9294bf2df3 100644
--- a/firmware/svnversion.h
+++ b/firmware/svnversion.h
@@ -1,5 +1,5 @@
 // This file was generated by Version2Header
-// Sat Mar 14 21:30:36 EDT 2015
+// Sun Mar 22 11:16:21 EDT 2015
 #ifndef VCS_VERSION
-#define VCS_VERSION "7427"
+#define VCS_VERSION "7501"
 #endif
diff --git a/firmware/tunerstudio/rusefi.ini b/firmware/tunerstudio/rusefi.ini
index ac70170f33..84f12ec590 100644
--- a/firmware/tunerstudio/rusefi.ini
+++ b/firmware/tunerstudio/rusefi.ini
@@ -1185,7 +1185,8 @@ fileVersion = { 20150314 }
 		
 ;			Tuning->General
 	dialog = generalSettings, "General"
-		field = "tunerStudioSerialSpeed", tunerStudioSerialSpeed		
+		field = "tunerStudioSerialSpeed", tunerStudioSerialSpeed
+		field = "Use PC10/PC11 serial?", useSerialPort		
 		field = "RPM Hard Limit",         	    		rpmHardLimit
 		field = ""
 		field = "Fuel Algorithm",						algorithm
diff --git a/java_console/autotest/src/com/rusefi/TestingUtils.java b/java_console/autotest/src/com/rusefi/TestingUtils.java
index 168e3e2063..e2daca5834 100644
--- a/java_console/autotest/src/com/rusefi/TestingUtils.java
+++ b/java_console/autotest/src/com/rusefi/TestingUtils.java
@@ -113,7 +113,6 @@ public class TestingUtils {
         // todo: improve this logic, compare times
         IoUtil.sendCommand("reset_wave_chart");
         getWaveChart();
-        getWaveChart();
         // we want to wait for the 2nd chart to see same same RPM across the whole chart
         String result = getWaveChart();
         FileLog.MAIN.logLine("current chart: " + result);
diff --git a/unit_tests/test_trigger_decoder.cpp b/unit_tests/test_trigger_decoder.cpp
index 8735db3afd..c9734b4962 100644
--- a/unit_tests/test_trigger_decoder.cpp
+++ b/unit_tests/test_trigger_decoder.cpp
@@ -516,7 +516,7 @@ void testTriggerDecoder(void) {
 	testTriggerDecoder3("citroen", CITROEN_TU3JP, 0, 0.4833, 0.0, 2.9994);
 
 	testTriggerDecoder3("neon NGC", DODGE_NEON_2003, 0, 0.4786, 0.0, CHRYSLER_NGC_GAP);
-	testTriggerDecoder2("sachs", SACHS, 0, 0.5000, 0.000);
+	testTriggerDecoder2("sachs", SACHS, 0, 0.4800, 0.000);
 
 	testMazda323();