diff --git a/firmware/CHANGELOG.md b/firmware/CHANGELOG.md
index 76e65bc198..4603c46542 100644
--- a/firmware/CHANGELOG.md
+++ b/firmware/CHANGELOG.md
@@ -38,6 +38,7 @@ Release template (copy/paste this for new release):
  - General Purpose PWM tables have wrong names on X-axis and Y-axis #6491
  - Ignition scheduling errors after 40+ hours of uptime #6451
  - luaSoftSparkSkip/luaHardSparkSkip probably bug #6528
+ - improved 4G63/4G9x cam wheel definition #6544
 
 ### Breaking Changes
  - "60/2 VW" trigger wheel renamed to "60-2 Wrong Polarity" #988
diff --git a/firmware/controllers/trigger/decoders/trigger_mitsubishi.cpp b/firmware/controllers/trigger/decoders/trigger_mitsubishi.cpp
index 70301dba91..6529f0e594 100644
--- a/firmware/controllers/trigger/decoders/trigger_mitsubishi.cpp
+++ b/firmware/controllers/trigger/decoders/trigger_mitsubishi.cpp
@@ -59,7 +59,7 @@ void initializeMitsubishi4g9xCam(TriggerWaveform *s) {
 	s->initialize(FOUR_STROKE_CAM_SENSOR, SyncEdge::Both);
 
 	// nominal gap 0.5
-	s->setSecondTriggerSynchronizationGap2(0.2, 0.8);
+	s->setSecondTriggerSynchronizationGap2(0.2, 0.95);
 
 	// nominal gap 3.0
 	s->setTriggerSynchronizationGap2(2.0f, 5.0f);