ignition timing dip

FlashPro questions & answers specific to the FN2 European Civic Type R
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pedja1
Posts: 5
Joined: Thu Sep 12, 2019 3:08 am

ignition timing dip

Post by pedja1 »

When accelerating (mostly in third gear at around 3k rpm) the car feels sluggish for about 0.5-1s, then it continues accelerating normally

I found in the log that in that moment two things happen, the ignition drops to 4-6 degrees, and a/f first leans out to around 15, then it goes to 12, after that it goes back to 'normal'.
I dont see any knocks and retard is 0

I read somewhere that TPS is the culprit, but to me it looks normal in this log?

I have attached part of the log and screenshot of the log

Edit: i forgot to mention that i have j37 Throttle Body, and this doesnt happen with OEM TB
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ignition_dip.fpdl
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Annotation 2020-06-20 132805.png
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EFICU
Posts: 3295
Joined: Mon Feb 25, 2019 10:14 pm

Re: ignition timing dip

Post by EFICU »

Can you post the calibration you're driving on?
pedja1
Posts: 5
Joined: Thu Sep 12, 2019 3:08 am

Re: ignition timing dip

Post by pedja1 »

Here it is
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calibration.fpcal
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typer86
Posts: 342
Joined: Sun Oct 28, 2012 3:17 pm

Re: ignition timing dip

Post by typer86 »

It seems to me the knock control will do fancy things.

Keep a try to set knock igntion limit "low" to 60 on all cam angles and set ignition IAT retard applied to ignition advance. Do also this for highcam...
Then tune your igntion profile until the knocks are zero if something will be tracked.

Hope it helps
pedja1
Posts: 5
Joined: Thu Sep 12, 2019 3:08 am

Re: ignition timing dip

Post by pedja1 »

@typer86

Sorry for the really late reply, I missed your post completely :D
I will try that, thanks for the advice
pedja1
Posts: 5
Joined: Thu Sep 12, 2019 3:08 am

Re: ignition timing dip

Post by pedja1 »

If anyone else has similar problem in the future, solution for me was to change "Ignition retard gear compensation" to -100% on all gears
Now the problem disappeared, and there aren't any side effects (so far)
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