diff --git a/unit_tests/main.cpp b/unit_tests/main.cpp
index 4dff2df687..b022b4b695 100644
--- a/unit_tests/main.cpp
+++ b/unit_tests/main.cpp
@@ -63,7 +63,7 @@ int main(void) {
 
 	testMisc();
 	testDifferentInjectionModes();
-	testPidAutoZigZag();
+	testPidAuto();
 	testMissedSpark299();
 	testSparkReverseOrderBug319();
 	testFuelSchedulerBug299smallAndLarge();
diff --git a/unit_tests/test_pid_auto.cpp b/unit_tests/test_pid_auto.cpp
index 07168bde12..6245fb3304 100644
--- a/unit_tests/test_pid_auto.cpp
+++ b/unit_tests/test_pid_auto.cpp
@@ -158,10 +158,9 @@ static void testPidAutoZigZagGrowingOsc() {
 
 }
 
-static void testPidAutoZigZagZero() {
+static void testPidZeroLine() {
 	printf("*************************************************** testPidAutoZigZagGrowingOsc\r\n");
 
-	oscRange = 0;
 	mockTimeMs = 0;
 
 	PID_AutoTune at;
@@ -174,7 +173,7 @@ static void testPidAutoZigZagZero() {
 			startMockMs = mockTimeMs;
 			printf("loop=%d %d\r\n", i, startMockMs);
 			for (; mockTimeMs < CYCLE + startMockMs; mockTimeMs++) {
-				at.input = zigZagValue(mockTimeMs);
+				at.input = 0;
 				bool result = at.Runtime(&logging);
 				assertFalseM("should be false#4", result);
 			}
@@ -182,11 +181,11 @@ static void testPidAutoZigZagZero() {
 		// nothing happens in this test since we do not allow time play a role
 }
 
-void testPidAutoZigZag() {
-	printf("*************************************************** testPidAutoZigZag\r\n");
+void testPidAuto() {
+	printf("*************************************************** testPidAuto\r\n");
 
 
-	testPidAutoZigZagZero();
+	testPidZeroLine();
 	testPidAutoZigZagStable();
 
 	testPidAutoZigZagGrowingOsc();
diff --git a/unit_tests/test_pid_auto.h b/unit_tests/test_pid_auto.h
index 8908f414e9..42ee6cce4f 100644
--- a/unit_tests/test_pid_auto.h
+++ b/unit_tests/test_pid_auto.h
@@ -8,6 +8,6 @@
 #ifndef TEST_PID_AUTO_H_
 #define TEST_PID_AUTO_H_
 
-void testPidAutoZigZag();
+void testPidAuto();
 
 #endif /* TEST_PID_AUTO_H_ */