Scanner we used is an Autel MS908 which gave us
Intake Sprocket Duty Cycle Command % Bank 1
Intake Sprocket Duty Cycle Actual % Bank 1
Bank 1 Intake Cam Degree
Intake Sprocket Duty Cycle Command % Bank 2
Intake Sprocket Duty Cycle Actual % Bank 2
Bank 2 Intake Cam Degree
These numbers will indicate position so you can see where the problem is.
There's also an article that explains very well how the system works at this link: [ Ссылка ]
Actual Specs that we found were on page 27 of that linked PDF
What we found when diagnosing in the "learned value" section of special functions in our ECM module options was our bank 1 intake sprocket was out of specs:
Specs Listed for BRZ/FRS
Intake Min - 52 Intake Max - 72
Exhaust Min - 78 Exhaust Max - 98
Our intake min on Bank 1 intake was at 46 so we knew that there was an issue with that sprocket and needed to be replaced as well after further diagnosis and after we found the other bank 2 sprocket was sticking.
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