diff --git a/unit_tests/tests/lua/test_lua_vag.cpp b/unit_tests/tests/lua/test_lua_vag.cpp
index d8285c5314..5f79f15043 100644
--- a/unit_tests/tests/lua/test_lua_vag.cpp
+++ b/unit_tests/tests/lua/test_lua_vag.cpp
@@ -2,17 +2,17 @@
 #include "rusefi_lua.h"
 #include "lua_lib.h"
 
-#define VAG_CHECKSUM "function xorChecksum(data)        \
+#define VAG_CHECKSUM8 "function xorChecksum8(data)        \
 		return data[1] ~ data[2] ~ data[3] ~ data[4] ~ data[5] ~ data[6] ~ data[7]  \
 	end"
 
 
 TEST(LuaVag, Checksum) {
-	const char* realdata = VAG_CHECKSUM R"(
+	const char* realdata = VAG_CHECKSUM8 R"(
 
 	function testFunc()
 		data = { 0xE0, 0x20, 0x20, 0x7E, 0xFE, 0xFF, 0xFF, 0x60 }
-		return  xorChecksum(data)
+		return  xorChecksum8(data)
 	end
 	)";
 
@@ -179,4 +179,20 @@ TEST(LuaVag, unpackMotor3_iat) {
     EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(script).value_or(0), 25.5);
 }
 
+#define realMotor6Packet "\ndata = { 0x3D, 0x54, 0x69, 0x7E, 0xFE, 0xFF, 0xFF, 0x80}\n "
 
+#define VAG_CHECKSUM1 "function xorChecksum1(data)        \
+		return data[8] ~ data[2] ~ data[3] ~ data[4] ~ data[5] ~ data[6] ~ data[7]  \
+	end"
+
+
+TEST(LuaVag, ChecksumMotor6) {
+	const char* realdata = VAG_CHECKSUM1 realMotor6Packet R"(
+
+	function testFunc()
+		return xorChecksum1(data)
+	end
+	)";
+
+    EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(realdata).value_or(0), 0x3D);
+}