1990 Throttle hesistation

[Schrade]

ed.:
I flunked DataMaster (rookie), so the plenum pull began @ post 66

Thread is broken off to Plenum pull / Top End Resto here


I think I got some DataMaster log data saved here now; where does the scan get saved to by default?

I still have DM open, if it makes a difference here.

I want to play it back - and I'm getting a prompt to open the saved data stream from 1 of 4 different folders...

Help?

[Franke]

Schrade, It may be in the My documents\TTS\GM \Datamaster-OBD1\DM_xx...etc. Its a .uni file and can be found in windows search.
I named a folder for each test I ran. For example... File name - replaced O2 sensors date/time/ etc.

[XfireZ51]

Is there a Scan folder in DATAMASTER?

[Franke]

Datamaster v400 gives 2 file playback options called Datamaster (.uni) or diacom file (.gdf) which is saved by default in the Datamaster program. By default to - My Documents\TTS\GM\Datamaster-OBD1\DM-xx folder. A file that is just recorded can be named anything you wish but is saved within that Datamaster program folder. These files are then available for playback in Datamaster and can be located in Windows on the main hard drive.

[9T1 Red ZR1]

Hi, when I use Datamaster, I click on "File" in the top left corner. When the box opens up, the recordings you made are at the bottom of the box starting with "C:\... Click on the one you want to view. I hope this helps.

[Schrade]

ed.:
I found 2 .uni files
AutoLog_001.uni, and AutoLog_002.uni
Are these sample files? Or are these my own recordings?

[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[
Alright; here's a text file... (still looking for the datastream (.uni) file)

Does this give anything of value?

Franke - the saved stream got the default name...



************ START OF LOG ITEM ************
DataMaster Z1 Version 4.0.1
Logfile Data: Friday, Sep 27 2013 03:54:31 PM
Timestamp = 0.000 Sec

Disable COM requested from monitor mode:
Running ALDL Status checks...
Data from monitoring 8192 ALDL for 2000 mS or first 300 Bytes
Byte Count: 258
10 59 0A 98 00 00 F5 40 55 6B 41 61 00 0F 00 98
86 01 A6 C2 54 7A 00 89 71 F0 56 F1 C9 10 59 0A
98 00 00 F5 40 55 6B 41 61 00 0F 00 98 86 01 A6
C2 54 7A 00 89 71 10 59 0A 98 00 00 F5 40 55 6B
41 61 00 0F 00 98 86 01 A6 C2 54 7A 00 89 71 10
59 0A 98 00 00 F5 40 55 6B 41 61 00 0F 00 98 86
01 A6 C2 54 7A 00 89 71 10 59 0A 98 00 00 F5 40
55 6B 41 61 00 0F 00 98 86 01 A6 C2 54 7A 00 89
71 10 59 0A 98 00 00 F5 40 55 6B 41 61 00 0F 00
98 86 01 A6 C2 54 7A 00 89 71 F0 56 F1 C9 10 59
0A 98 00 00 F5 40 55 6B 41 61 00 0F 00 98 86 01
A6 C2 54 7A 00 89 71 10 59 0A 98 00 00 F5 40 55
6B 41 61 00 0F 00 98 86 01 A6 C2 54 7A 00 89 71
10 59 0A 98 00 00 F5 40 55 6B 41 61 00 0F 00 98
86 01 A6 C2 54 7A 00 89 71 10 59 0A 98 00 00 F5
40 55 6B 41 61 00 0F 00 98 86 01 A6 C2 54 7A 00
89 71
AnalyzeMessage: status = 4, CCM only detected
Disable ALDL Comm Successful, beginning data collection!


************ START OF LOG ITEM ************
DataMaster Z1 Version 4.0.1
Logfile Data: Friday, Sep 27 2013 03:54:39 PM
Timestamp = 8.801 Sec

Disable COM requested from monitor mode:
ALDL Link Monitor bypassed, previously detected PCM/CCM assumed
MonData having problems linking, Disable Com Status = -4, Recycle Count = 1





edited for interruptions in DataMaster stream...

[Franke]

Schrade, Looks like continuous linkup failures. Also looks like you were trying to view data in monitor mode. That's ok but no recorded data available in monitor mode. Lets do a bit of review.
1. You are using DM32xZ1 for 90-92 Y car correct?
2. Options-advanced-usb interface in use must be selected on the serial data acquisition form
3. USB driver latency setting is set to 1 ms.
4. Some corvettes including our ZR-1's LT5's have difficulty linking up. (as you know already) To get past this issue the ALDL link timing must be adjusted.
Bring up the serial data acquisition form and from menu select options/advanced/serial com timing. This brings up serial com timing form and allows you to adjust ALDL link timing. By default it is set to 0 delay in ms. TTS shows the optimum values to be between 190 and 205. To establish optimum setting it is necessary to find lowest and highest delay setting that works and then set in between. Start about 195 and work your way up or down to find the limits. Each time you make a change press ok button. then retry the connection by pressing start or single button. Repeat until upper and lower limits are found then set to mid value. Usually this is very narrow range of about 4-5. I had to do this to get my com port to link and stay linked.
5. If the CCM is not working correctly or the car is modified it may be necessary to disable ALDL handshake and/or options- advanced- disable dash refresh in order to link.
Hope this helps. A great help to you would be the TTS ops manual which you would have to download and print.

[Schrade]

OK - set the ALDL timing link to 190, and NO PCM sync in the next recording. Set it back to '0', and re-established data collection, same intermittency.

Now trying other values from '0' - 190...

150 - no good.
125 - no good.
100 - no good.
50 - no good.
25 - no good; still no PCM sync...

Back to '0' allows data collection, with intermittent 'Lost Com'.

Does the frequency of the 'Lost Com', give a clue as to what OTHER setting needs changing?

[Franke]

A note in chapter 7 says TTS has found that MOST USB adapters fail to operate correctly for recording ALDL data. For this reason, it is recommended that the TTS USB serial port adapter be used as it is extensively tested with all windows versions. Did you buy their USB adapter? Did you download and use the TTS USB driver from their web site for what ever version of windows you use? Also, make sure the windows com port configuration is such as (I think you are using com port 4) 9600 Bits/sec, 8 data bits, parity= none, stop bits=1, flow control = none. Then to Advanced setting tab - BM options latency timer to 1 ms which allows the interface to link up more consistently.
You could also try another com port in your laptop to see if it works better such as 5 on up to 12.

[Franke]

Schrade, here is what my adapter looks like. It has a pin jumper on the USB plug which I think is mentioned in the Datamaster manual.