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Author Topic: Dashcommand slows down issue (not connecting)  (Read 9441 times)
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Username123
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« on: April 26, 2016, 08:53:29 am »

Hi. I came across dashcommand last week and I absolutely love it but before I buy it, I wanted to make sure it works. I'm using a USB elm327 from eBay on a android headunit from carjoying.com running kitkat 4.4.4.

When it all gets connected and running, after a few minutes it will start to slow down. For example, the rpm reading is nice and fast and then it starts to read the rpm signal every few seconds to the point where I have to shut down the app and when I restart dashcommand again, it can't see the obd2 USB adapter.

What's my issue here?

EDIT:
Replaced old elm with new obdlink sx and dashcommand will not recognize it.
« Last Edit: April 29, 2016, 09:31:35 pm by Username123 » Logged
John@PPE
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« Reply #1 on: April 26, 2016, 04:20:39 pm »

It sounds like you might have bad hardware. I'd suggest the following test:

In the settings, turn off the persistent PIDs. In the Data Grid, remove all PIDs except the RPM.
Let DashCommand run connected for 10 minutes. Do the RPM slow down?
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« Reply #2 on: April 26, 2016, 05:30:09 pm »

Ok, I will try that when I get a chance.  Yesterday, I turned off the persistent pids and noticed that it wasn't slowing down until I started exploring the app.  It started slowing down when I was checking out dashcommand.  I will try your suggestions and report back.

What hardware are you referring to?  The android radio or the elm327?
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John@PPE
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« Reply #3 on: April 26, 2016, 07:18:36 pm »

the elm327
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Username123
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« Reply #4 on: April 27, 2016, 11:20:23 am »

I ended up ordering the OBDLink SX to replace the generic ELM327.  Once that comes in, ill test further.
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« Reply #5 on: April 29, 2016, 07:43:00 pm »

Ok so I got the obdlink sx installed today and it will not connect with dashcommand android app. I keep getting "interface not found" error.
However, it does work with the obdlink android app on the same android unit. so I know the adapter is working.
I also tried uninstalling and reinstalling the dashcommand app. Am I missing something?
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« Reply #6 on: April 30, 2016, 04:32:58 pm »

When the USB device is plugged into the Android phone, you should get a popup asking if you want to launch DashCommand. Are you seeing this?
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« Reply #7 on: April 30, 2016, 04:56:36 pm »

When the USB device is plugged into the Android phone, you should get a popup asking if you want to launch DashCommand. Are you seeing this?
Yes I am seeing that pop up.
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« Reply #8 on: April 30, 2016, 05:18:41 pm »

Let's look at the tech log. Please follow instructions here to send a tech log: http://www.palmerperformance.com/forum/index.php?topic=4665.0
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« Reply #9 on: April 30, 2016, 05:58:28 pm »

Let's look at the tech log. Please follow instructions here to send a tech log: http://www.palmerperformance.com/forum/index.php?topic=4665.0
Ok done.
Thank you 
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« Reply #10 on: April 30, 2016, 07:56:05 pm »

I've looked at the log and not sure yet why it isn't working. But the log file says you have 2 USB devices connected. Is that correct?

If not, can you try rebooting the Android device?

If so, what is the other device. In this case, one thing to try would be to set the OBD-II dataport in the DashCommand settings.
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« Reply #11 on: April 30, 2016, 08:08:33 pm »

I've looked at the log and not sure yet why it isn't working. But the log file says you have 2 USB devices connected. Is that correct?

If not, can you try rebooting the Android device?

If so, what is the other device. In this case, one thing to try would be to set the OBD-II dataport in the DashCommand settings.

The other device is a usb hub with nothing connected to it.  I have rebooted it many times and tried pretty much every combination in the settings.  What are you suggesting that i set the dataport to?
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« Reply #12 on: April 30, 2016, 08:13:41 pm »

I'm wondering if the USB Hub is confusing DashCommand. There should be a OBD-II Dataport that you can set to USB DEVICE. It will further allow you to choose which USB device.

Are you able to try it with the USB Hub disconnected.

If neither of these work, I'll have to look into this more on Monday.
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« Reply #13 on: April 30, 2016, 08:17:36 pm »

ill try with the hub disconnected. 
When i try to change the setting to USB, it wont let me.  It just stays on auto.  I tap usb and nothing happens.
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« Reply #14 on: April 30, 2016, 08:30:39 pm »

I tried it with the hub unplugged and also tried plugging the obdlink to the other USB port and still doesn't connect.

EDIT: I tried the obdlink sx with another android device and same issue.
Also, it will recognize my generic elm327 but not my obdlink sx.
« Last Edit: May 01, 2016, 02:26:10 pm by Username123 » Logged
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