diff --git a/firmware/controllers/trigger/aux_valves.cpp b/firmware/controllers/trigger/aux_valves.cpp
index 6d4b4e6c0e..023fc8619d 100644
--- a/firmware/controllers/trigger/aux_valves.cpp
+++ b/firmware/controllers/trigger/aux_valves.cpp
@@ -51,12 +51,16 @@ static void auxValveTriggerCallback(trigger_event_e ckpSignalType,
 		NamedOutputPin *output = &enginePins.auxValve[valveIndex];
 
 		for (int phaseIndex = 0; phaseIndex < 2; phaseIndex++) {
+/* I believe a more correct implementation is the following:
+ * here we properly account for trigger angle position in engine cycle coordinates
 			// todo: at the moment this logic is assuming four-stroke 720-degree engine cycle
 			angle_t extra = phaseIndex * 360 // cycle opens twice per 720 engine cycle
 					+ valveIndex * 180 // 2nd valve is operating at 180 offset to first
 					+ tdcPosition() // engine cycle position to trigger cycle position conversion
 					- ENGINE(triggerCentral.triggerShape.eventAngles[SCHEDULING_TRIGGER_INDEX])
 					;
+*/
+			angle_t extra = phaseIndex * 360 + valveIndex * 180;
 			angle_t onTime = extra + engine->engineState.auxValveStart;
 			fixAngle(onTime, "onTime");
 			scheduleByAngle(rpm, &turnOnEvent[valveIndex][phaseIndex],