95 K20a Bogging at times - KPRO Change needed?

K-Series Programmable ECU installation questions / support issues
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mistaphace
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95 K20a Bogging at times - KPRO Change needed?

Post by mistaphace » Mon Oct 29, 2018 11:43 am

I am having an issue with my K20a in 95 SI hatch. At times I am bogging as if it is not getting fuel. I have tried to recalibrate the TPS, but it does not appear to have an impact. During a short drive it happened a few times closer to end of the ride. My datalog is 13MB so I can only send it via email, but I am looking for some assistance on which direction I should go in at this time. I can email a copy of the datalog and answer any questions that you may have about the car.

k20a - (Partial Rebuilt with new Rods, Rings, Valve Guides and valve seals). Intake/Header/2.5 Apexi Exhaust

The block was planked and decked as well. Everything is running normally besides these periodic bogs.

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Spunkster
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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by Spunkster » Mon Oct 29, 2018 4:59 pm

Has this been properly tuned on the dyno?

mistaphace
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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by mistaphace » Mon Oct 29, 2018 5:06 pm

My tune was done but in between partial builds, we had to go back in to check the rings due to smoke. I have not retuned since, the tune I am using was done after the 1st rebuild.

Can I send you my datalog?

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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by Spunkster » Tue Oct 30, 2018 9:49 am

You can post your calibration as well as a datalog showing the issue.

mistaphace
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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by mistaphace » Wed Oct 31, 2018 2:03 pm

Here is my tune that I am currently running. The datalog is too large to post, but if you PM your email, I will forward it to you.

I had my dyno tech take a look and he mentioned that I should check my grounds. I am up for all suggestions.

Thanks!
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DynoTech Tune 2018.kal
(182.03 KiB) Downloaded 8 times

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Spunkster
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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by Spunkster » Wed Oct 31, 2018 2:23 pm

You can trim the datalog by selecting the section you want and right clicking it and resaving as a new name.

mistaphace
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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by mistaphace » Wed Oct 31, 2018 2:50 pm

Here is a buffered version. I believe that this captured the activity a few times. If not I will upload the beginning of the run as well to see if you see a difference.

Thanks!
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Bog Test - Partial.kdl
(4.92 MiB) Downloaded 9 times

mistaphace
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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by mistaphace » Wed Oct 31, 2018 2:53 pm

Beginning of the run.

When the issue happens, it is as if I am getting a fuel cutout. It could be the A/F map settings but I am not sure.
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Bog Test - Partial 2.kdl
(8.34 MiB) Downloaded 7 times

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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by Spunkster » Wed Oct 31, 2018 3:12 pm

You may want to read the help file about the acceleration smoothing retard: http://www.hondata.com/help/kmanager/ge ... htsub=gear

That is what appears to be happening according to the datalog.

mistaphace
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Re: 95 K20a Bogging at times - KPRO Change needed?

Post by mistaphace » Wed Oct 31, 2018 3:20 pm

Thank you. I will send this info to my tuner. I don't think I could do this on my own. Unless you have suggestions on what I should change the rpm and retard to...

I appreciate your assistance thus far.

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