Data Error on Datamaster
- Thread starter just a 6
- Start date
G
Guest
Guest
yea me too i cant get my lap top /datat master to work right alwasys getting data err.!!!!! this #%^%ing sucks i have emailed tts and still no reply. cheatham
manitoufs
Member
cheatham2492:
TTS is a rather small shop without a ton of resources. They work really hard but are sometimes hard to get a hold of. Steve Cole's secretary is very protective. I found Steve to be a really committed guy who spent a lot of "one on one" time with me and my truck to get it talking to Datamaster with one of the early versions.
If you got your cable from Andrew, call him, not TTS. Andrew is tops and will also work to help you. It sounds to me like some of the other things suggested here are the path to noise free data collection. The software (TTS) is not the issue.
TTS is a rather small shop without a ton of resources. They work really hard but are sometimes hard to get a hold of. Steve Cole's secretary is very protective. I found Steve to be a really committed guy who spent a lot of "one on one" time with me and my truck to get it talking to Datamaster with one of the early versions.
If you got your cable from Andrew, call him, not TTS. Andrew is tops and will also work to help you. It sounds to me like some of the other things suggested here are the path to noise free data collection. The software (TTS) is not the issue.
Tooky
Serious about performance
Guys I get Data Err frames every once in a while. I'm gonna say one out of 3000 frames. I had assumed that was just normal but later in the fall with colder weather, it seemed like it did this more often, and commonly right when I stomped on the gas (where I needed the data the most!!). Is this problem definitely eliminable, or is this minor annoyance just the way our ECMs operate? Thanks.
Here is some suggestions from Andrew about data errors:
"The way I see it, we have a few possibilities.
1) There is a loose component in the cable.
2) You have a loose ground wire or faulty ALDL connection
3) There is noise on the ALDL data line from an ignition system component
The cable seems to get data OK when the truck is at idle. Every now and then, we see a Data Err packet. However, once you start accelerating, there is a LOT of Data Err. This is what makes me think it's either a noise issue (spark plugs, spark plug wires) or a loose ECM ground shaking around and causing noise on the ground wire. Unfortunately, I don't know the SyTy under hood wiring setup, nor the ECM wiring. However, I know that on my Camaro, the PCM is grounded on the engine, and if that lug is loose, it could cause weird things.
Are you running noise suppression spark plug wires? (not the solid core low-ohm copper wire jobbers, but something with some noise suppresion?)
Are your spark plugs OK? Is the truck 'missing' at all? Do you have an aftermarket ignition system installed?
I noticed on SyTy.net that one person suggested tying a ground from the ECM shell to a grounding stud on the frame. Have you tried that?
Thanks!
Andrew"
"The way I see it, we have a few possibilities.
1) There is a loose component in the cable.
2) You have a loose ground wire or faulty ALDL connection
3) There is noise on the ALDL data line from an ignition system component
The cable seems to get data OK when the truck is at idle. Every now and then, we see a Data Err packet. However, once you start accelerating, there is a LOT of Data Err. This is what makes me think it's either a noise issue (spark plugs, spark plug wires) or a loose ECM ground shaking around and causing noise on the ground wire. Unfortunately, I don't know the SyTy under hood wiring setup, nor the ECM wiring. However, I know that on my Camaro, the PCM is grounded on the engine, and if that lug is loose, it could cause weird things.
Are you running noise suppression spark plug wires? (not the solid core low-ohm copper wire jobbers, but something with some noise suppresion?)
Are your spark plugs OK? Is the truck 'missing' at all? Do you have an aftermarket ignition system installed?
I noticed on SyTy.net that one person suggested tying a ground from the ECM shell to a grounding stud on the frame. Have you tried that?
Thanks!
Andrew"
myclone
Donating Member
I had a fellows truck at my place running MY datamaster/laptop on it and noticed that I didnt get any data errors. Previously when we would run HIS laptop/datamaster on this same truck and it would lose data a LOT.
This is a grounding/noise prob is all. Maybe some laptops/trucks are more succeptable but IMO its a noise/ground issue.
Run a clip lead (jumper wire) from the ECM ground to the screw terminal on the back of the lap top where the com port(s) are. Double/triple check your eng/chassis/body grounds.
I have actually put an oscilloscope on the ECM power/sensor wires on both the above mentioned trucks and looked at the noise. His truck was terrible until some ground issues were addressed. Both his truck and myclone were still "noisey" none the less so do EVERY thing you can to properly ground the ECM, laptop, chassis, etc.
Just my .02....
This is a grounding/noise prob is all. Maybe some laptops/trucks are more succeptable but IMO its a noise/ground issue.
Run a clip lead (jumper wire) from the ECM ground to the screw terminal on the back of the lap top where the com port(s) are. Double/triple check your eng/chassis/body grounds.
I have actually put an oscilloscope on the ECM power/sensor wires on both the above mentioned trucks and looked at the noise. His truck was terrible until some ground issues were addressed. Both his truck and myclone were still "noisey" none the less so do EVERY thing you can to properly ground the ECM, laptop, chassis, etc.
Just my .02....
G
Guest
Guest
Manitoufs you were absolutly right!!!!!my appologys to tts/Amatti I have msd 6 and a blaster coil, msd wires. I installed a noise filter from the advice of some one ansering my reply I forget who now but thanks none the less. Data Master works perfectly now thanks to the BB.
Typhoon #1133
New member
What kind of noise filter and where did you install it?
B
Blake
Guest
I run grounds everywhere in the one's I've made. The cigarette lighter, the #5 pin of the RS232 port, and the ground port on the ALDL are all connected together on the circuit board itself. I've used a multimeter on the cigarette lighter, the aldl, and the ecm to ground to make sure resistance was low. I've only had one I made that did the data dropping thing and it as because two of my transistors were bad(all three legs were shorted internally).
One guy had tons of data errors. After talking to him a while, found out the previous owner had mounted an MSD in the glovebox..... :roll:
I like using the cigarette lighter for power so the power from the laptop port doesn't have to run so long right next to the transmitting and receiving lines going to the adaptor. Unfortunately doesn't lend itself to as clean a design.
George
One guy had tons of data errors. After talking to him a while, found out the previous owner had mounted an MSD in the glovebox..... :roll:
I like using the cigarette lighter for power so the power from the laptop port doesn't have to run so long right next to the transmitting and receiving lines going to the adaptor. Unfortunately doesn't lend itself to as clean a design.
George