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MaxxECU online help

Commonly used on Nissan vehicles, CA18, SR20, RBxx to name a few.

CAS, Cam Angle Sensor which is a sensor mounted on the the intake cam (mostly) to give a virtual crank and cam sensor signal to the ECU.


Note: There are many problems related to Nissan CAS trigger system mainly because the cam belt flex and mount positions.

MaxxECU tries to "filter" all bad signals received from this sensor, to much errors will result in trigger errors to prevent the engine from getting damaged. Nissan CAS V2 is verified to give a spark angle of +/- 1 degree timing accuracy even on higher revs.



CAS V1 - Initial release.

CAS V2 - Added to be able to detect RPM even with bad sensor inputs.

CAS V3 - Added for people with really problematic sensors. <-- use this version.



Since MTune MTune 1.143 we released another version of the CAS decoder, which should be the best option for customers with problematic sensors.


See also, GM LT1 Optispark, Nissan CAS/GM LT1 cam with missing tooth crank.



Upgraded Nissan CAS trigger (AEM style)


Upgrade Nissan CAS trigger disc option.



Trigger settings for the upgraded Nissan CAS disc.





NZ wiring RB CAM trigger kit


Product ID: 1984.



Trigger setup for the NZ wiring RB CAM trigger kit.



See also

Trigger problems and solutions.

Nissan CAS wiring.