Need help dataloging!! - Using winALDL
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From: Buffalo, NY
Car: 1987 Camaro IROC-Z28
Engine: TPI 350ci L98
Transmission: T56 - Hurst Shifter
Axle/Gears: BW - 3.70
Need help dataloging!! - Using winALDL
Help me!!!
Alright I'm obviously new to this computer tuning. I've already done hours of reading and I figured the best way to get started is to get some datalogs of my car so I can analyze them and then learn how to tune. It seems that I am having some problems just getting any data to look at.
Here is what I have:
I bought an ALDL cable from www.aldlcable.com.
I have an old but reliable HP Omnibook 5500CS P100 with Win95.
My car is an 87 Camaro IROC with the 5.7 TPI MAF and Auto trans.
1. I assume that I have the 165 ECM based on what I have read. Is this correct or would I have to check the computer to know for sure? I'm pretty sure that it is still the factory original ECM.
2. If I do have the 165ECM does this communicate at 160 Baud or 8192? If it can transmit at 8192 that awesome because that would be a lot faster.
3. I am trying to use winALDL to log the data. I have hear that winALDL only operates at 160 baud. Is this correct? If my car can communicate at 8192 baud then I should be using a different program to take advantage of the higher baud rate?
4. I have read that I need the 10k resistor between pins A & B to get into ALDL mode and get the data flowing. I have found this to be correct. Once I am in ALDL mode and have established communications can I remove the resistor? The car seems to run rough in ALDL mode and stalls out from time to time.
5. I am trying to use winALDL to log the data. If there is a better program to use with this ECM let me know that too. The cable that I have is getting it's power and ground from the cigarette lighter. It is reading data from both pins E & M which go to the same place in the DB9 connector. Here is a wiring diagram of the cable I am using.
ALDL Cable wiring diagram
In winALDL I have set it to the 165 ECM. The com port is COM1 which is correct. I set the baud rate to 4800. I couldn't get anything with the baud rate set to 2400. I plug in the ALDL connector, then the cigarette adapter, then the DB9 into the laptop. Next I open winALDL and turn the ignition to the ON position. The data starts to flow. It is apparently communicating at 160 Baud because I only get about 1 read per second. Everything seems to work. When I push the gas peddle the TPS sensor value changes. The box at the top of winALDL has the number 25 and flashes green. I then start the car and the data flow stops. The number at the top of winALDL changes between 2,3,4 and flashes red. I have not been able to get any data while the car is running! Only when the ignition is turned on. What is going on??? I have tried it with and without the 10k resistor between pins A & B. I also tried using datamaster but couldn't seem to get any data with that program either but I might not be using the software correctly.
Any info regarding all or some of these questions would be apprichiated.
Alright I'm obviously new to this computer tuning. I've already done hours of reading and I figured the best way to get started is to get some datalogs of my car so I can analyze them and then learn how to tune. It seems that I am having some problems just getting any data to look at.
Here is what I have:
I bought an ALDL cable from www.aldlcable.com.
I have an old but reliable HP Omnibook 5500CS P100 with Win95.
My car is an 87 Camaro IROC with the 5.7 TPI MAF and Auto trans.
1. I assume that I have the 165 ECM based on what I have read. Is this correct or would I have to check the computer to know for sure? I'm pretty sure that it is still the factory original ECM.
2. If I do have the 165ECM does this communicate at 160 Baud or 8192? If it can transmit at 8192 that awesome because that would be a lot faster.
3. I am trying to use winALDL to log the data. I have hear that winALDL only operates at 160 baud. Is this correct? If my car can communicate at 8192 baud then I should be using a different program to take advantage of the higher baud rate?
4. I have read that I need the 10k resistor between pins A & B to get into ALDL mode and get the data flowing. I have found this to be correct. Once I am in ALDL mode and have established communications can I remove the resistor? The car seems to run rough in ALDL mode and stalls out from time to time.
5. I am trying to use winALDL to log the data. If there is a better program to use with this ECM let me know that too. The cable that I have is getting it's power and ground from the cigarette lighter. It is reading data from both pins E & M which go to the same place in the DB9 connector. Here is a wiring diagram of the cable I am using.
ALDL Cable wiring diagram
In winALDL I have set it to the 165 ECM. The com port is COM1 which is correct. I set the baud rate to 4800. I couldn't get anything with the baud rate set to 2400. I plug in the ALDL connector, then the cigarette adapter, then the DB9 into the laptop. Next I open winALDL and turn the ignition to the ON position. The data starts to flow. It is apparently communicating at 160 Baud because I only get about 1 read per second. Everything seems to work. When I push the gas peddle the TPS sensor value changes. The box at the top of winALDL has the number 25 and flashes green. I then start the car and the data flow stops. The number at the top of winALDL changes between 2,3,4 and flashes red. I have not been able to get any data while the car is running! Only when the ignition is turned on. What is going on??? I have tried it with and without the 10k resistor between pins A & B. I also tried using datamaster but couldn't seem to get any data with that program either but I might not be using the software correctly.
Any info regarding all or some of these questions would be apprichiated.
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