AFR stuck at 14.7:1

K-Series Programmable ECU installation questions / support issues
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whelan190
Posts: 3
Joined: Sat Feb 20, 2021 5:36 pm

AFR stuck at 14.7:1

Post by whelan190 »

Hi all I'm new here and may be asking a stupid noob question. I have only had my kpro v4 a week and have not had it tuned yet just a basemap but it has never changed AFR from 14.7:1
I have a K&N typhoon intake. 4-2-1 decat japspeed down pipe. 2.5" exhaust pipe with a skunk2 backbox. A switch wired into E29 to turn on and of pops and bangs. Other than that every thing else that affects the ecu is standard.
I know its proberbly just a setting i have wrong or because i dont have a windband o2 sensor but i hope you can help

- what vehicle you have -2004 EP3 uk speck
- serial number of your K-Pro- 56446
- version of software being used (from Help, About) 4.4.4.0
- ECU part number (37820-pra-e12) and serial number (237981-4311)
- when and where you got the K-Pro - 03/03/2021 from CPL racing uk
Attachments
Datalog-210305-000.kdl
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Type R factory calibration with tweeks & switched pops and bangs.kal
(162.4 KiB) Downloaded 60 times
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Hondata
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Re: AFR stuck at 14.7:1

Post by Hondata »

The Euro spec ECU only has a narrowband o2 sensor. To get the lambda you need to connect a wideband.
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whelan190
Posts: 3
Joined: Sat Feb 20, 2021 5:36 pm

Re: AFR stuck at 14.7:1

Post by whelan190 »

ok thank you I thought that might of been the case I was just expecting to to see slight switching not static. so I'm sure you have answer this before on here but here go's
what is wideband senor should I fit and what wiring diagrams do I need for a PRA ECU.
thank you for your help
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Spunkster
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Re: AFR stuck at 14.7:1

Post by Spunkster »

Use a PLX wideband and you can input it into the Analog input on the K-Pro board.
whelan190
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Joined: Sat Feb 20, 2021 5:36 pm

Re: AFR stuck at 14.7:1

Post by whelan190 »

cheers thank you for that. out of interest I'm not bothered about fitting the afr gauge can i just get the bosch wideband o2 sensor and fit that as a plug and play or wired into the analog input
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Spunkster
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Re: AFR stuck at 14.7:1

Post by Spunkster »

No, you need a wideband controller for it to work.
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