[FL5] Throttle plate flapping around 6,000+ rpm

FK2 Civic Type R 2015-2017, FK8 Civic Type R 2017-2021, FL5 Civic Type R 2023+ and Integra Type S 2024+
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ponsit
Posts: 17
Joined: Thu Apr 03, 2014 1:03 am

[FL5] Throttle plate flapping around 6,000+ rpm

Post by ponsit »

My tuned car is FL5 JDM 37820-66V-J04
- Stock internal
- Turbo RV6 R660
- Intercooler Wagner
- HPFP Full-Race P0370A-A
- Boost 2 bar

Found the flaaping around 6,000+ rpm but just sometime not every run occurred.
After full throttle few times, I found misfire at high rpm also.
I assumed that because of A/F getting richer than target which is 10.6
but actual A/F rich over 10.3 the misfire sound occurred.

Could you please help what happen and how to fix it ?

Image
https://1drv.ms/i/c/8a7e48b6734db0aa/IQ ... I?e=mReQFP

Log file is in attachment below
https://1drv.ms/u/c/8a7e48b6734db0aa/IQ ... Q?e=VhZirf
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Spunkster
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Posts: 24133
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: [FL5] Throttle plate flapping around 6,000+ rpm

Post by Spunkster »

Please post the calibration used directly here.
ponsit
Posts: 17
Joined: Thu Apr 03, 2014 1:03 am

Re: [FL5] Throttle plate flapping around 6,000+ rpm

Post by ponsit »

Spunkster wrote: Fri Jan 02, 2026 10:17 am Please post the calibration used directly here.
The calibration is in the link below.
https://1drv.ms/u/c/8a7e48b6734db0aa/IQ ... g?e=LWJLC8

The password is H0ndata2025
jeffx
Posts: 149
Joined: Tue Apr 16, 2019 2:19 pm

Re: [FL5] Throttle plate flapping around 6,000+ rpm

Post by jeffx »

ponsit wrote: Tue Jan 06, 2026 4:53 am
Spunkster wrote: Fri Jan 02, 2026 10:17 am Please post the calibration used directly here.
The calibration is in the link below.
https://1drv.ms/u/c/8a7e48b6734db0aa/IQ ... g?e=LWJLC8

The password is H0ndata2025
they're asking you to upload the files directly here.
ponsit
Posts: 17
Joined: Thu Apr 03, 2014 1:03 am

Re: [FL5] Throttle plate flapping around 6,000+ rpm

Post by ponsit »

Spunkster wrote: Fri Jan 02, 2026 10:17 am Please post the calibration used directly here.
Can you download the file ?

I have tried to logout myself out testing.
It's downloadable.
FK8_Hoonigan
Posts: 45
Joined: Tue Mar 09, 2021 11:02 am
Location: OH
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Re: [FL5] Throttle plate flapping around 6,000+ rpm

Post by FK8_Hoonigan »

Behavior resembles OEM TC kicking in aggressively since you dont have TC enabled.
BUT regardless i would start by fixing that AirFuel table bro, that is just wayyyyyyyyyy too rich!

If you need a new tune, see my signature for help... because wow. Plenty room for improvement there.
GARIX Tuning
2021 R-39464
https://dot.cards/garix
ponsit
Posts: 17
Joined: Thu Apr 03, 2014 1:03 am

Re: [FL5] Throttle plate flapping around 6,000+ rpm

Post by ponsit »

FK8_Hoonigan wrote: Wed Jan 07, 2026 12:30 pm Behavior resembles OEM TC kicking in aggressively since you dont have TC enabled.
BUT regardless i would start by fixing that AirFuel table bro, that is just wayyyyyyyyyy too rich!

If you need a new tune, see my signature for help... because wow. Plenty room for improvement there.
Thanks for your valuable feedback.

I’m going to try again with Hondata TC enable.

I will contact you if I need help.
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