Datamaster woes
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Joined: Jan 2013
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From: Steel City PA
Datamaster woes
I've been messing with datamaster to help shed some insight into why my 94 has been running so rough. I've got no codes, so I figured datamaster would be a useful tool to take a peak at what the engine is actually doing.
I come with some seeming anomalies:
1. I lose sync with the PCM every 5 or so seconds. It just can't keep a constant, stable connection.
2. When first starting the car it shows my knock counts at 1500. That's simply not right.
I'll post a few screen caps of my different data runs to see the weirdness I'm experiencing.
I come with some seeming anomalies:
1. I lose sync with the PCM every 5 or so seconds. It just can't keep a constant, stable connection.
2. When first starting the car it shows my knock counts at 1500. That's simply not right.
I'll post a few screen caps of my different data runs to see the weirdness I'm experiencing.
Drifting
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
I've been messing with datamaster to help shed some insight into why my 94 has been running so rough. I've got no codes, so I figured datamaster would be a useful tool to take a peak at what the engine is actually doing.
I come with some seeming anomalies:
1. I lose sync with the PCM every 5 or so seconds. It just can't keep a constant, stable connection.
2. When first starting the car it shows my knock counts at 1500. That's simply not right.
I'll post a few screen caps of my different data runs to see the weirdness I'm experiencing.
I come with some seeming anomalies:
1. I lose sync with the PCM every 5 or so seconds. It just can't keep a constant, stable connection.
2. When first starting the car it shows my knock counts at 1500. That's simply not right.
I'll post a few screen caps of my different data runs to see the weirdness I'm experiencing.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 411
From: WV
It's been awhile since I bought Datamaster, but I believe I had to shut off the screensavers and battery saver modes that put the computer on standby or sleep mode, there was also something called "CCM Handshake" that you had to disable or it wouldn't stay connected. .You may want to call TTS and see if they can tell you what you have to disable for Datamaster to stay connected and work properly....WW
http://www.ttspowersystems.com/DataM...downloads.html
http://www.ttspowersystems.com/DataM...downloads.html
Last edited by WW7; Jun 14, 2014 at 10:44 PM.
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From: Steel City PA
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Joined: Dec 2000
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From: Phila., PA burbs
It's been awhile since I bought Datamaster, but I believe I had to shut off the screensavers and battery saver modes that put the computer on standby or sleep mode, there was also something called "CCM Handshake" that you had to disable or it wouldn't stay connected. .You may want to call TTS and see if they can tell you what you have to disable for Datamaster to stay connected and work properly....WW
http://www.ttspowersystems.com/DataM...downloads.html
http://www.ttspowersystems.com/DataM...downloads.html
Instructor
Joined: Nov 2010
Posts: 172
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I use Moates hardware and TunerPro on my '90. You definitely have to get the CCM to shut the *&^# up or you get all kinds of crazy garbage in the datalog. Not sure what the options are in Datamaster but I'm sure it can be done.
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From: Phila., PA burbs
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Joined: Jan 2013
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From: Steel City PA
Thanks guys, hoping to get out there and give it another try soon this week.
Also,
on my first run once I started recording the data stream the Service ASR Light came on my DIC. Is that normal, or is it a symptom of the issues that I was experiencing?
Also,
on my first run once I started recording the data stream the Service ASR Light came on my DIC. Is that normal, or is it a symptom of the issues that I was experiencing?
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Joined: Jan 2013
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From: Steel City PA
Posting pictures and video of my datarun
bumping this thread up with some pictures of my datarun, screen capture to follow in a few minutes. I have pictures of my histogram. I know there's something wrong here I just don't know where to look.
Burning Brakes
Joined: Mar 2005
Posts: 1,082
Likes: 115
From: Richmond Hill Ontario
Ok from what I can tell you are getting intermittent "Data Err" which means you are possibly losing communication while datalogging. Please make sure that you have "Disabled CCM Handshake" before datalogging. This is found when you start to record under Options, Advanced then choose "Disable CCM Handshake". Then try capturing a new Datalog and resend me the new file.
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Joined: Jan 2013
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From: Steel City PA
Ok from what I can tell you are getting intermittent "Data Err" which means you are possibly losing communication while datalogging. Please make sure that you have "Disabled CCM Handshake" before datalogging. This is found when you start to record under Options, Advanced then choose "Disable CCM Handshake". Then try capturing a new Datalog and resend me the new file.
). I've got a few things to try along with the CCM handshake disable to try to get the communication line stable. Thanks for the help and suggestions so far everyone.
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Joined: Jan 2013
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From: Steel City PA
I've been at it again this afternoon. Took it for another spin and datamaster just doesn't agree with my car. I've disabled the ccm handshake and made sure everything was connected before I opened the program. I don't know what else the problem could be.
It's making it harder yet to figure out why the car runs so rough. Each time I drive it, it gets to be more un drivable. The car shakes when it stumbles and the exhaust pops when it stumbles. I don't have a clue.
It's making it harder yet to figure out why the car runs so rough. Each time I drive it, it gets to be more un drivable. The car shakes when it stumbles and the exhaust pops when it stumbles. I don't have a clue.
Burning Brakes
Joined: Mar 2005
Posts: 1,082
Likes: 115
From: Richmond Hill Ontario
take a look at this posting. It suggests to try a program called "Scan9495" perhaps you can have luck with it:
http://forums.corvetteforum.com/c4-s...r-to-work.html
http://forums.corvetteforum.com/c4-s...r-to-work.html