Haltech E6X Manual Win Version - Manual (Page 165)

E6X Manual
165
There are 3 common patterns for Nissan triggers, but for each pattern, there is always a
unique window. You do not need to know what the patterns are, but you need to know which
unique window size to use for a given sensor. The sizes are described by the number of small
teeth that it inside of the window of the large slots. The following styles of Nissan sensor have
been recognised:
• Pattern 1 – The unique slot sizes are of pattern 8,2,2,2 for a 4-cylinder engine and
8,2,2,2,2,2 for a 6-cylinder engine. Typically these are found on early generation
Nissan motors such as FJ20, RB30ET.
• Pattern 2 – The unique slot sizes form pairs with two unique slots at opposite ends.
Typical patterns are 4,8,12,8 for a 4-cylinder motor. For 6-cylinder motors of this
pattern type, typical patterns are 4,8,12,16,12,8. These patterns are typically found in
CA18 and RB20 motors.
• Pattern 3 – All the large slot sizes are unique. A typical pattern is 4,8,12,16. This is
commonly found on SR20 motors.
Pattern 1
The first pattern has a unique pulse width for cylinder number one and then a common size
window for all other cylinders.
Cyl. 4 Window
Cyl. 1 Window
Cyl. 6 Window
Nissan 6-Cylinder Trigger 1