TunerPro RT help on 1995 Buick Century

[TheDougO]

Hello All,
Over the last few weeks I have been trying to get TunerPro RT to log data from my 1995 Buick Century without any luck. I am able to get the program to connect via the ALDL port without any problems, the data (MPH, engine temp, etc.) is all over the place (like MPG at 1J#4 or 14000). I have been told connecting and disconnecting might resolve the issue but it has not. Oddly enough the only program I have been able to get any real data is from FreeScan though I am only able to putt MPH, engine temp and volts. I have tried an assortment of settings with out any luck.

Has anybody been successful on getting TunerPro RT to capture data on a 1995 Buick Century 3.1L? I am using the 1FA.ads data-stream definition with version 5.00.8853.00 of TunerPro (I tried converting the ads to an adx file as well since that was also reported to possibly have issues). The file off the website says it should work with my year and model of car: 94-95 3.1L (L82) A-body (Century, etc) ADS also spplies to W-Body. Any hints or ideas would be great at this point, thanks!

- Doug

 

[MelsRegal]

not sure if this applies but it is from the TunerPro site
What is ALDL/OBDI and what do I need to make use of it with TunerPro?

ALDL (Assembly Line Diagnostic Link) is a datastream used by the cars management computer(s) and diagnostic equipment. OBDI (or OBD1) stands for On-Board Diagnostics - One (there is also OBDII). Both of these combine to create a method by which a mechanic can acquire, change, and monitor information related to a vehicle's operation. Typical ALDL data streams contain information about the vehicle's speed, fuel delivery, spark operations, airflow, and mixture. There are generally two "speeds" at which OBDI vehicles communicate - 8192 baud (bits per second) and 160 baud.

TunerPro RT (currently) can communicate with 8192 baud OBDI data streams. In order to make use of TunerPro RT's ALDL communication ability, you will need an OBDI ALDL cable in either the 2 transistor or MAX232/233 IC configuration. These can be obtained through a couple of sources. See the Links & Resources section of this web site for information on where to obtain these.

You will also need an ALDL datastream definition file for your particular automobile. Included with TunerPro RT is a definition for the 1227165 ECM (typically found in GM '86-89 V8 applications). Your car may require a different definition. If you have your car's datastream information, you can create your own definition using TunerPro.

Once you have your cable, operation is as simple as connecting the cable to the vehicle following the cable manufacturer's directions (some cables require external power, some don't) and running the ALDL tool within TunerPro RT. Most automobile OBDI connectors are found under the dash of the vehicle. If your vehicle requires a 10k resistor to initiate 8192 diagnostic mode, be sure this is connected.

 

[TheDougO]

Correct - this information is very similar to what I have been finding. Right now I do have an ALDL cable (http://www.aldlcable.com/products/aldlobd1u.asp) that I have been using to "read" the data. The interesting part was the resistor, There is a jumper on the cable that looks like can jump pins A and B though on my application I do not have a B pin. I was able to see that just by turning the car on (not starting) will unleash a stream of data. It seems like the issue I might be having is having the program understand the information coming from the computer. I briefly looked at the output from FreeScan and a terminal program but do not understand the values of what is being displayed. I was able to confirm that I am using the 8192 baud rate (8-N-1) for the capture.

I have not been able to find any more information on getting the values read (even through other programs), I have only found some people saying it works but not saying how they got it to work. I'm going to keep trying to see what I can get, I'm dredging through the TunerPro forum at the moment to see what I can find as well.

- Doug

 

[TheDougO]

Just an update on this, it appears that the definition I was using ($1FA) was the incorrect version, after much searching I was able to locate the correct one (A263) thanks to the guys over at the TunerPro forums. The difference was the $1FA was for non-MAF equipped versions of the vehicle and the A263 was for MAF equipped versions. Everything appears to be reading correctly now without any issues. Hopefully this will help out somebody in the future.

- Doug

 

[Duckland23]

Can tunerpro read the codes for abs too .i have a 1995 buick century and i also dont have the A and B terminals also the terminals A and H are not there thanks to the lovely engineers at gm saving some money .thats the reason they needed bailout money from uncle sam .

Well if anyone can steer me in the right direction im very thank full too .

My abs light is on and i want my abs working .also my cruse control not working too .im wondering if i have a bad brake switch dont know at this point .

 

[Johan]

Can tunerpro read the codes for abs too .i have a 1995 buick century and i also dont have the A and B terminals also the terminals A and H are not there thanks to the lovely engineers at gm saving some money .thats the reason they needed bailout money from uncle sam .

Well if anyone can steer me in the right direction im very thank full too .

My abs light is on and i want my abs working .also my cruse control not working too .im wondering if i have a bad brake switch dont know at this point .

I, have the same problems with my 1994 Century, 12 pin connector with only three wires, upper two right, lower third from the right. How did you solve your failures?

 

[TheDougO]

...I believe it can but it looks like it might need to be able to read those codes to display them. I know this is an older post but I will see what I can find out since there is less and less information about these cars floating around...

 

[barryr]

Hello All,
Over the last few weeks I have been trying to get TunerPro RT to log data from my 1995 Buick Century without any luck. I am able to get the program to connect via the ALDL port without any problems, the data (MPH, engine temp, etc.) is all over the place (like MPG at 1J#4 or 14000). I have been told connecting and disconnecting might resolve the issue but it has not. Oddly enough the only program I have been able to get any real data is from FreeScan though I am only able to putt MPH, engine temp and volts. I have tried an assortment of settings with out any luck.

Has anybody been successful on getting TunerPro RT to capture data on a 1995 Buick Century 3.1L? I am using the 1FA.ads data-stream definition with version 5.00.8853.00 of TunerPro (I tried converting the ads to an adx file as well since that was also reported to possibly have issues). The file off the website says it should work with my year and model of car: 94-95 3.1L (L82) A-body (Century, etc) ADS also spplies to W-Body. Any hints or ideas would be great at this point, thanks!

- Doug

So I have been working on my 95 century
Exact same issues. The connector is OBD 1.5 only has wires on A,M, and K
I'm going to try different scanners and with tuner pro use the 4 different 94-95 3800 adx files on the cd I received . Not sure if you still have this car since your post is 7 years ago. But figured I would reply