C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Can't get Datamaster to work

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Old Jun 7, 2014 | 06:12 PM
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Default Can't get Datamaster to work

I sent them an email but it's the weekend and I want to check the car now.
i have a 1995 vette m6. the drivers were installed with my new cable, i downloaded datamaster, selected the com port, turned the key to on and there is no data. no difference if i start the car. i have attached a picture of the error i get. it did manage to grab the VIN however after 3 tries.

I am now also using Scan9495 and that will not playback a recorded scan.
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Last edited by Hairy W Bush; Jun 10, 2014 at 11:56 PM.
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Old Jun 7, 2014 | 06:20 PM
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In the serial data acquisition window did you open and name a file? Chose file / open, and name it and click ok
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Old Jun 7, 2014 | 06:25 PM
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There is no 'open' under file.
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Old Jun 7, 2014 | 06:36 PM
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Have you tried a different com port? I downloaded EE and I can see open under the file menu?
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Old Jun 7, 2014 | 06:41 PM
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no because that's what opened when I plugged in the usb. and there is no 'open' under mine. there's playbacks and record but no open. you downloaded from their site right? 4.0.1

Last edited by Hairy W Bush; Jun 7, 2014 at 06:44 PM.
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Old Jun 7, 2014 | 06:45 PM
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When you choose record it opens the serial data acquisition window. From there you chose file / open and name the file.

I have a webpage on how to use it. www.scotthansen.net/data
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Old Jun 7, 2014 | 06:54 PM
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OH ok. now I don't want to keep using my records so shouldnt I see some data running WITHOUT pressing the Record button??
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Old Jun 7, 2014 | 07:10 PM
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buddy im still not seeing anything on the main table after i push record. same error too

Last edited by Hairy W Bush; Jun 7, 2014 at 07:12 PM.
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Old Jun 9, 2014 | 02:12 PM
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Google 'Scan 9495'. Completely free so you don't have to worry about the number of times you hit record. the guy who developed it is on a number of the LT1 forums and is very willing to help!
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Old Jun 9, 2014 | 11:15 PM
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wow it actually works. thanks a lot!
it is a little laggy though. is that the program or obd1?
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Old Jun 10, 2014 | 10:58 AM
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I haven't had a chance to use it. It's on my to-do list. I would contact the developer for help. I know the guy who developed it has a Trans Am. The Corvettes required a code to silence the CCM; is there an option for Corvettes in the software, or some option that says silence CCM? I know some folks have had difficulty with Datamaster on the Corvettes and I think it has to do with the CCM too; the F-body guys usually don't have any problems. This is just a guess on my part, but I know it is a difference in the LT1 cars and if the CCM is still communicating it will trash communications by other devices.
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Old Jun 10, 2014 | 06:44 PM
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I do not see an option to silence CCM on either. I also do not see anywhere on 9495 to select my car. The closest thing is that it automatically pulls my VIN, PCM, and a few other things.

Last edited by Hairy W Bush; Jun 10, 2014 at 06:56 PM.
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Old Jun 10, 2014 | 09:21 PM
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ok i ran the car with a scan for a little bit but I can't read it. it wants to open in openoffice so it's just a bunch of numbers and if I click 'read log file' I get an unhandled exception error.I want to upload my scan so someone can read it and tell me what my issue is.
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Old Jun 10, 2014 | 11:50 PM
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Scan9495 (and the user guide) can be downloaded from here:

http://www.mediafire.com/?0elo4c935uc5s#cbvcftmnyb199
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Old Jun 10, 2014 | 11:55 PM
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I have it. The above is my issue and from what I see, it's the latest version.
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Old Oct 27, 2015 | 09:41 AM
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I know this is really old, but there is now an early version for the Corvette in the Trials folder. The CCM is silenced but there are still issues with conflicts.
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