Altitude with stock map?

K-Series Programmable ECU installation questions / support issues
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Ep3k24driver
Posts: 3
Joined: Wed Jun 03, 2020 5:30 pm

Altitude with stock map?

Post by Ep3k24driver »

I drive from 3200 feet elevation to Sea level every day to work and I can get tune pretty good where I live By doing data logs and I got it to wear I have had zero to no knocks but I feel like when I get down to Sea level I feel like my car runs richer which isn’t that bad but when I did datalogs and adjusted fuel according to my data logs I get from driving sea level I end up running lean close to where I live at over 3200 feet... so you guys recommend replacing my map sensor to aftermarket map sensor or what can I do to help with this issue because I’m not exactly sure what to do I’ve had a couple lean cuts because of it. And it feels like I’m chasing my tail trying to damn tune it I’ve been on my laptop for weeks :(.

So far I got it doing about 13.2/13.5 but sometimes 14 even at wide open throttle around my area but about 12.5-13 at sea level now so it’s pretty close but I just had some knocking at sea level at lower rpms and it’s weird because I’m adjusting some of the same ignition tables that I was adjusting at 3200 elevation To reduce knocking...

By the way my setup is a 2004 civic hatchback si with jdm tsx k24 kpro version 4. I also had one more question I have racing motor mounts and stage 1 excedy clutch can that affect me getting more knocks? Btw I didn’t mean to make such a long post hope you have a good day.
EFICU
Posts: 3293
Joined: Mon Feb 25, 2019 10:14 pm

Re: Altitude with stock map?

Post by EFICU »

Do you have datalogs you can post from each climate, that show richness on one and lean on the other. As well as knock. Those would help determine a few things. Also, if you can post your calibration file that would help as well. I would be interested in seeing your fuel tables, the fact that it's lean at elevation and rich at sea level is a little weird if my mind serves me correctly.

Anyways, post some datalogs of the issue and your calibration file, then hopefully one of us can help you out.
Ep3k24driver
Posts: 3
Joined: Wed Jun 03, 2020 5:30 pm

Re: Altitude with stock map?

Post by Ep3k24driver »

Ok your right it’s actually lean at sea level because I been trying to tune it locally. Yesterday I drove over 100 miles my mpgs is crappy too I’m getting like 22-26. On the way home it lean cut twice around sea level but when I was close to 3000 elevation it was driving better af
EFICU
Posts: 3293
Joined: Mon Feb 25, 2019 10:14 pm

Re: Altitude with stock map?

Post by EFICU »

Which calibration are you driving on right now? Can you post the calibration?

Do you have datalogs from both elevations?
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