Hondata

Yeap. I only let it adjust +\- 5%. When it reads lean it tries to add 5% back in. But I can add or even take away a few % of fuel and it will go back into the 14s afr. But after driving a bit it will be lean again. I even turned closed loop off and ran it in open loop and the same behavior occurs ...

Hi. Ive noticed a very odd behavior from the kpro recently. This has happened already with 2 customer cars. What will happen is that after tuning, the idle will go extremely lean. It can be idling at 17-18 afr and I can add 1% of fuel in and it will jump back up in the 14s afr. Then after driving ...

the entire ecu and kpro

I’m uploading by hitting the upload arrow that is up by the lightening bolt icon
41044 is the serial number
And I’m on version 4.4.3.0

So I have kpro v4 and the car will run for a lil bit then it will throw a code for o2 sensor malfunction and the o2 sensor will read full lean and not read anything, when I switch out the kpro for another one of my buddies it’s fine and the o2 sensor works perfectly fine and throws no error codes.

ive had this problem where car would go lean and the entire tune would be off. i started noticing it only does it when i manually upload to ecu. the car will be full lean on wideband but if i add just 1 percent fuel afr will go back to 14.1-14.3. if i dont manually upload and just let the ecu live ...