PLX Kiwi 4

Discussion related to external OBD and other sensors
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ARCTICboy
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Re: PLX Kiwi 4

Post by ARCTICboy » Thu Apr 25, 2019 12:50 am

Ah, So I guess for the money the Kiwi 3 seems better?

Is the BT LE limit a hardware issue?

Marcus
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Harry
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Re: PLX Kiwi 4

Post by Harry » Thu Apr 25, 2019 6:11 am

I have just this observation, not sure it is an issue with real cars or just the simulator. The Kiwi4 has some features on top of the Kiwi3. They are not relevant for LapTimer use, but may be valuable for other use cases. So at the same price I‘d take the 4.

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Re: PLX Kiwi 4

Post by ARCTICboy » Mon May 06, 2019 3:10 am

Hi Harry. I got the Kiwi 4 but have some update rate issues and connection problems. Should I start a new topic? or post the issues here?

- MM
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Re: PLX Kiwi 4

Post by Harry » Mon May 06, 2019 6:04 am

Please start with looking into late posts on connection / rate issues. From what I see, most issues are general ELM327 optimization issues, not adapter specific. Feel free to post your configuration and issues here in case you can’t resolve the problem.

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Re: PLX Kiwi 4

Post by ARCTICboy » Mon May 06, 2019 10:00 pm

Hi Harry. I will have a read per your suggestion and report back

Also, I had a friend try his OBD and apps with my car and his. Here is some of his feedback.

~~~

I used a ELM-based reader that only works with Android as it's not using the newer BT protocol that is compatible with iOS.

https://www.amazon.ca/Veepeak-Bluetooth ... 011NSX27A/

With this at least with this and Android it's able to see the various PIDs on the 2000 Mustang and 2010 Audi S4 with no issues. With the Mustang, with Torque, it can also see the voltage that the OBD2 is reporting while the Kiwi4 does not as Torque can show the voltage that the OBD2 adapter itself is reporting as the Mustang does not have a PID for voltage it appears.

When trying to use the Kiwi4 with the Android (OnePlus 6T), the phone has difficulties in pairing with the Kiwi4, when it does pair successfully with Torque or RaceChrono, it is not able to get any usable data from the Kiwi4 as both apps is displaying that the adapter is having issues connecting to the ECU.

With the Kiwi4 and iOS, with Harry's laptimer, it does see the Kiwi4 but it is not able to see any data due to an update rate issue. With the Kiwi OBD app, it does see the data and displays it.
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Re: PLX Kiwi 4

Post by ARCTICboy » Tue May 07, 2019 3:28 am

Seems to be a problem with the Kiwi 4:

http://bluetoothobd2.com/kiwi-4-obd-ada ... ion-issues
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Re: PLX Kiwi 4

Post by Harry » Tue May 07, 2019 1:19 pm

So not only you, but your friend too may have a look into this recent post: viewtopic.php?f=8&t=5368#p26196

Voltage by the way is not OBD PID. The adapter is connected to the car's power circle and has this data available using the ATV command. LapTimer uses it.

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Re: PLX Kiwi 4

Post by krell » Wed Jun 26, 2019 6:54 pm

If using a Kiwi 3 or 4 will it generate data plots for brake and throttle or do those only appear as overlays on video?
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Re: PLX Kiwi 4

Post by Harry » Wed Jun 26, 2019 7:10 pm

Data plots for throttle - yes, for brake not. Please try the G-G diagram, it is usually best to analyze brake and acceleration positions.

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Re: PLX Kiwi 4

Post by krell » Wed Jun 26, 2019 7:23 pm

I pulled up data from my last event and am looking at this diagram now. I'm familiar with the friction circle but I think the data curve at the bottom is probably more relevant. Is there a tutorial on the site going into detail so I'm not missing anything?
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