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firmware/controllers/algo/rusefi_enums.h

@@ -218,6 +218,11 @@ typedef enum {
 
 	TT_36_2_2_2 = 23,
 
+	/**
+	 * only the 4 tooth signal, without the 360 signal
+	 * 8,2,2,2 Nissan pattern
+	 * See also TT_NISSAN_SR20VE_360
+	 */
 	TT_NISSAN_SR20VE = 24,
 
 	TT_2JZ_3_34 = 25,
@@ -255,6 +260,9 @@ typedef enum {
 
 	TT_JEEP_18_2_2_2 = 37,
 
+	/*
+	 * See also TT_NISSAN_SR20VE
+	 */
 	TT_NISSAN_SR20VE_360 = 38,
 
 	TT_UNUSED = 39, // this is used if we want to iterate over all trigger types

firmware/controllers/trigger/decoders/trigger_nissan.cpp

@@ -1,6 +1,8 @@
 /**
  * @file	trigger_nissan.cpp
  *
+ * https://rusefi.com/forum/viewtopic.php?f=3&t=1194&start=150#p27784
+ *
  * @date Sep 19, 2015
  * @author Andrey Belomutskiy, (c) 2012-2017
  */
@@ -8,6 +10,9 @@
 #include "trigger_nissan.h"
 #include "trigger_universal.h"
 
+/**
+ * 8,2,2,2 Nissan pattern
+ */
 static void initializeNissanSR20VE_4_optional_360(TriggerShape *s, bool with2nd DECLARE_ENGINE_PARAMETER_SUFFIX) {
 	s->initialize(FOUR_STROKE_CAM_SENSOR, with2nd);
 	s->isSynchronizationNeeded = true;