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EJ207 VVT Settings


andpdas

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I have Subaru STI 2012 EJ207.

My Engine has both intake and exaust VVT.

At first, I have used the default cam settings "Subaru Quad AVCS".
But it didn't be stable.

I am using custom pid settings but sill not stable.
I have read the help page in the PCLink about the custom PID settings.
I also understand about how the PID works.
But I can't make it stable.

Could you look at my settings and see if I had messed up something.
Or, any prefered values?

GVB-22L - コピー.pclr

Log : 
https://drive.google.com/file/d/16AIBPA81snG-T_0r1Q5aQA6OrRvFkNTV/view?usp=sharing
 

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Your Intake cams appear to control well once the oil is warm but are a bit unstable when cold.  You may be able to improve this using a higher/lower minimum and max clamp when cold and posibly reducing Proportional gain a little more.

I would try min max clamps like this:

mnOKE70.png

 

For the exhaust cams, have you tried even less proportional?  Like say about 1.5?

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4 hours ago, Adamw said:

Your Intake cams appear to control well once the oil is warm but are a bit unstable when cold.  You may be able to improve this using a higher/lower minimum and max clamp when cold and posibly reducing Proportional gain a little more.

I would try min max clamps like this:

mnOKE70.png

 

For the exhaust cams, have you tried even less proportional?  Like say about 1.5?

Thanks, I'll try it!

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I have tried changing both clamp table and proportional.

It went pretty well on the exhaust right cam. but not on left cam.

I have swapped to the stock ECU and took some logs. but both right and left exhaust cam were stable.
I think it is not a mechanical problem.

Should I use separate PID settings for right and left exhaust cams?
And do you have any idea why does my left exhaust cam are going up and down.

https://drive.google.com/open?id=1AjfPYF8nR7Jw-arvEXf-mMwlgSiQ4q1u
https://drive.google.com/open?id=11oXq1Vj5YbyYr2Lu0Oi89E_y6qlxHNX5

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