Hondata

4.6.6 (2 April 2026)
· Firmware updated to version 278
· [Spoon Sports] Added support for 2026 N One 5K7-J11
· [2016-2021 Civic] CANFlex support added
· [2022+ Civic] Added support for 2022 model 64A-X110 Mexico

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Please only post in this thread if directly related to the software ...

The ECU will disable the pops and bangs if the cat is too hot.

We received support information - the ECU is not going into programming mode. Try disconnecting the battery for a minute and see if that helps. If not, put the original file (read during the jailbreak) back in and then you should be able to return to stock.

The change made was for the FL5, and was an unused table index which could get altered inadvertently so was removed.

Send us the datalogs. A zero LTFT looks more like lambda was not working yet.

Update your software. You are two versions behind.

FlashProManager 4.6.5 (26 February 2025)

• Firmware updated to version 277
• [2012-2015 Civic Si] Added boost target and duty
• [FK8/FL5/DE5] Fixed ethanol boost limit

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Please only post in this thread if directly related to the software release.

Because the development effort is based on the ECU not the engine. The j swap uses the TL development we had already done.

This type of question comes up a lot where people like to group the product development by engine. At that point I usually mention that the two closest FlashPro we ever made ...

FlashProManager 4.6.4 (13 February 2025)

• Firmware updated to version 276
• Added US FL5 to engine swap FlashPro

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Please only post in this thread if directly related to the software release.

Make and post a datalog and then people can look at the fuel trims. About 95% of intakes alter the AFM enough to require tuning; even those certified by CARB not to do so.

Has the calibration been tuned for the intake? If not that is the problem.

Any information as above would help us narrow this down as it works in our own testing.

Email me your serial please for the injector tables.

No, it is a bug. 'All' does not update all the tune tables. Fixed for the next release.

You post has a bogus IP address, which often indicates a bot or spammer. If you are human, apologies.

Please give the serial number of your FlashPro and product a calibration/datalog.

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