CAMCMD in datalog does not follow CAM angle in calibration

FlashPro questions & answers specific to the FD2 Japanese Civic Type R
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engjoo
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CAMCMD in datalog does not follow CAM angle in calibration

Post by engjoo » Thu Aug 19, 2010 10:21 am

Looking through my datalogs and see that the CAMCMD and CAM values are close which is understandable.

However, I noticed that very often, CAMCMD differs from the CAM angle reflected on the VTC table by as much as 30 degree.

I am aware it takes time for the CAM angle to change but is it normal to have such a large deviation ?

I am on 1.1.6.2 now but I remember seeing this in 1.1.5.6

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Spunkster
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Post by Spunkster » Thu Aug 19, 2010 10:58 am

impossible to say without the calibration and datalogs showing the problem

engjoo
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Post by engjoo » Thu Aug 19, 2010 5:13 pm

Spunkster wrote:impossible to say without the calibration and datalogs showing the problem
you have mail !

engjoo
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Re: CAMCMD in datalog does not follow CAM angle in calibrati

Post by engjoo » Thu Aug 19, 2010 5:32 pm

Screen shots.

Image

dallionz
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Post by dallionz » Fri Aug 20, 2010 5:01 pm

u r driving an fd2r, wat r yr current mods? could be helpful if u list yr mods. any test pipe or cat?

engjoo
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Post by engjoo » Fri Aug 20, 2010 5:10 pm

dallionz wrote:u r driving an fd2r, wat r yr current mods? could be helpful if u list yr mods. any test pipe or cat?
My car is stock apart from an intake air scoop (remove resonator) + K&N drop in.

Stock Header, cat, cat back.

It is still having persistent part throttle knock. On some days, you can get knock counts more than 100 and on some days, it would be fine.

dallionz
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Post by dallionz » Fri Aug 20, 2010 6:04 pm

did yr tuner adjust the knock sensitivity limit? sometimes the inconsistant octane of fuel n embient temp contribute to knock. being in a higher gear n stepping on the throttle would in definite induce knock.
Last edited by dallionz on Fri Aug 20, 2010 8:08 pm, edited 2 times in total.

engjoo
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Post by engjoo » Fri Aug 20, 2010 6:38 pm

dallionz wrote:did yr tuner adjust the knock sensitivity limit? sometimes the inconsistant octane of fuel n embient temp contribute to knock. being in a higher gear n stepping on the throttle would in definite induce knock. u tuned by rhom? ( jus a guess).
Stock sensitivity unchanged. As far as I know, it should not change from stock values.

dallionz
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Post by dallionz » Fri Aug 20, 2010 8:05 pm

that's correct. was part throttle tuning done? u could post yr log n cal n I will look it up for u.

else u can pm me.

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