Radiator Fan always on

FK2 Civic Type R 2015-2017, FK8 Civic Type R 2017-2021, FL5 Civic Type R 2023+ and Integra Type S 2024+
OverRev
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Radiator Fan always on

Post by OverRev »

I have intake, intercooler, DP, full exhaust, was running 91 Oct, DP, intercooler map well for a couple weeks on my 2019 FK8. After I installed PRL Ti intake piupe and FlexFuel kit, I flashed the calibration to enable ethanol ready from ECT2, ethanol content, and the radiator fan is always on, like 5 sec after I started the car or ign on, checked radiator fan setting the on/off temp looks fine. Anyone have an idea how to fix this?
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Spunkster
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Re: Radiator Fan always on

Post by Spunkster »

Post your calibration as well as a datalog showing the issue.
OverRev
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Re: Radiator Fan always on

Post by OverRev »

I tired 91 oct DP intercooler improved throttle response map with all 3 ethanol options checked, 2nd O2 disable checked, Reb hang and 7200 rev limit Checked, and I tried E0-E80 map with only ethanol input thru ECT2 enable, other 2 ethanol options not checked, the rest options same as above. Both map get the fan to turn in instantly. Checked PRL fuel fuel kit install and eventhing is fine.
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Spunkster
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Re: Radiator Fan always on

Post by Spunkster »

We do not need screenshots. We need the actual calibration as well as a datalog showing the issue.
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Hondata
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Re: Radiator Fan always on

Post by Hondata »

Is the flex fuel kit installed? Does it read ethanol content correctly?
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OverRev
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Re: Radiator Fan always on

Post by OverRev »

Tired for 2 weeks, still no luck. How can I upload my calibration so you pros can check for me? I will download the lastest beta 3.5.9 and try again.
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Spunkster
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Re: Radiator Fan always on

Post by Spunkster »

Save it to your hard drive, then attach it to your post using the attachment tab.
OverRev
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Re: Radiator Fan always on

Post by OverRev »

FlexFuel01.fpcal
FlexFuel calibration
(16.73 KiB) Downloaded 137 times
Here is the calibration. before i tried 3.5.9 beta, I put ~10L of E85 in the car for the first time to make sure its reading properly (not easy to get E85 where I live so took me a month to finally got some) I drove the car around the block to mix the fuel and it showed ~16% ethanol on the screen. Oddly the radiator fan is not on anymore. does it mean i always have to run the car with certain % of ethanol?
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Hondata
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Re: Radiator Fan always on

Post by Hondata »

Did we establish what ECU you have?
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OverRev
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Re: Radiator Fan always on

Post by OverRev »

Mine is 2019 Canadian Version
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Hondata
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Re: Radiator Fan always on

Post by Hondata »

Use 'send feedback to hondata' with everything plugged in and that will tell us.
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Re: Radiator Fan always on

Post by Hondata »

We have reproduced this problem and are in the process of fixing this. It only occurs with ethanol free gas.
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Semin1907
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Re: Radiator Fan always on

Post by Semin1907 »

Thank you for the quick fix. Im going to try it ,now im downloading the update.

Thank you again.
Have a nice day
OverRev
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Re: Radiator Fan always on

Post by OverRev »

Correct, I have tried many different setting with the latest “non-beta” version, followed all the directions from Aston on FK8 review group but still no luck. The rad fan turns on full speed when Ethanol is lower then ~5%, and most high octane pump gas here in Canada is under 5% ethanol... so it’s like always on full speed in my case, not sure if it turns off at hwy speed.
OverRev
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Re: Radiator Fan always on

Post by OverRev »

Most importantly, I am getting my car dyno tuned. If the fixed is released after, can I have the fix applied to the tuned map? Or do I have to copy all the tables manually to a new base map?
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