diff --git a/firmware/controllers/algo/obd_error_codes.h b/firmware/controllers/algo/obd_error_codes.h
index d10dcad571..d89f08ca51 100644
--- a/firmware/controllers/algo/obd_error_codes.h
+++ b/firmware/controllers/algo/obd_error_codes.h
@@ -2087,7 +2087,7 @@ typedef enum {
 	NO_LONGER_USED_CUSTOM_ERR_VVT_OUT_OF_RANGE = 6726,
 	CUSTOM_VVT_MODE_NOT_SELECTED = 6727,
 	CUSTOM_ERR_6728 = 6728,
-	CUSTOM_ERR_6729 = 6729,
+	CUSTOM_ARTIFICIAL_MISFIRE = 6729,
 
 
 	STACK_USAGE_COMMUNICATION = 6900,
diff --git a/firmware/controllers/engine_cycle/spark_logic.cpp b/firmware/controllers/engine_cycle/spark_logic.cpp
index efb98ca340..022bd68c21 100644
--- a/firmware/controllers/engine_cycle/spark_logic.cpp
+++ b/firmware/controllers/engine_cycle/spark_logic.cpp
@@ -538,7 +538,7 @@ void onTriggerEventSparkLogic(bool limitedSpark, uint32_t trgEventIndex, int rpm
 				// artificial misfire on cylinder #1 for testing purposes
 				// enable artificialMisfire
 				// set_fsio_setting 6 20
-				warning(CUSTOM_ERR_6729, "artificial misfire on cylinder #1 for testing purposes %d", engine->globalSparkIdCounter);
+				warning(CUSTOM_ARTIFICIAL_MISFIRE, "artificial misfire on cylinder #1 for testing purposes %d", engine->globalSparkIdCounter);
 				continue;
 			}