2012 Civic SI flash Help.

2012+ US/Canadian Civic Si / 2013+ ILX
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codybob33
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Joined: Thu Oct 09, 2025 6:04 am

2012 Civic SI flash Help.

Post by codybob33 »

I recently bought a 2012 civic si, came with a Acuity CAI on it (CEL on). I bought a flashpro, tried out the map for PRL CAI and my idle surges from 1k-1.5k. So i switched to Hondata reflash. ran fine, got down the road from work and lost all throttle response @ approx 70mph. stuck on side of the road. I tried several different base maps from the software to get home, and then returned to stock. Return to stock got me almost home approx 30 mins down the road and CEL came back on w misfires galore. I ended up limping home to my drive way.

I saw on 9th forums some people saying to check the MAP tables box in the config. But didnt change anything.

here is a log in my driveway. not moving. Log was made with MAP box checked using the "US Civic Si 2012-2014, Hondata reflash"
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Spunkster
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Re: 2012 Civic SI flash Help.

Post by Spunkster »

Does it have an aftermarket clutch?

The errors are for misfires.
codybob33
Posts: 6
Joined: Thu Oct 09, 2025 6:04 am

Re: 2012 Civic SI flash Help.

Post by codybob33 »

i was told the clutch was replaced, but not told what was in it, or any details. So.. maybe not an oem? Ill look through the maint records in the glove, maybe i can get something from there.
codybob33
Posts: 6
Joined: Thu Oct 09, 2025 6:04 am

Re: 2012 Civic SI flash Help.

Post by codybob33 »

unfortunately this is all i have for history:

"Customer has supplied his own Slave & Master Cylinder, Clutch Assembly and Cold Air Intake and requests that they be installed on the vehicle"
codybob33
Posts: 6
Joined: Thu Oct 09, 2025 6:04 am

Re: 2012 Civic SI flash Help.

Post by codybob33 »

Spunkster wrote: Mon Oct 13, 2025 3:40 pm Does it have an aftermarket clutch?

The errors are for misfires.
Thank you for the fast reply too. I really appreciate any help i can get.
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Spunkster
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Re: 2012 Civic SI flash Help.

Post by Spunkster »

If it is an aftermarket clutch/flywheel it may need to have the misfire detection disabled in the calibration.
codybob33
Posts: 6
Joined: Thu Oct 09, 2025 6:04 am

Re: 2012 Civic SI flash Help.

Post by codybob33 »

Spunkster wrote: Mon Oct 13, 2025 4:38 pm If it is an aftermarket clutch/flywheel it may need to have the misfire detection disabled in the calibration.
alright ill try it out and repost the datalog at idle. thanks
codybob33
Posts: 6
Joined: Thu Oct 09, 2025 6:04 am

Re: 2012 Civic SI flash Help.

Post by codybob33 »

Spunkster wrote: Mon Oct 13, 2025 4:38 pm If it is an aftermarket clutch/flywheel it may need to have the misfire detection disabled in the calibration.
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