Trouble with WinALDL

[ahill22584]

Would you mind describing your connection from the laptop to the ALDL serial port?

I followed the suggestions in this post http://www.gearhead-efi.com/Fuel-Inj...USB-ALDL-Cable

I have a FT232RL board that I soldered spade terminals to since I don't have the actual ALDL port. I connected the TX and RX pins together and to what would be the E pin on the port (red wire). Then added a ground to the vehicle body (black wire). Then just a standard USB-A to USB-B cable to the laptop. I have now tried Windows XP and Windows 7 on two different laptops with the same result.

I used the drivers on Moates.net site CDM20824_Setup.exe

[damanx]

Ok, I'm not very familiar with using that set-up as I use the serial port ALDL cable since I have a Toughbook CF-30 for tuning.

I did once try to use a USB type connection and had nothing but problems because windows was having issues with the com-ports, but that doesn't sound like your problem.

Did you make sure the port speed in TunerPro is set correctly?

Also check this post:

http://www.gearhead-efi.com/Fuel-Inj...ll=1#post13942

[ahill22584]

Thanks for all the suggestions. I started rereading that post and decided to try moving the VCC jumper from 5v to 3.3v and that seams to have resolved the issue. I still get occasional data errors but it is working 99% of the time. I'd love to know why as this seams to be the reverse of what everyone says is correct but hey it works so I can log data now. Woo hoo! Thanks again. Great community here.

[AlexanderHL]

Thanks for all the suggestions. I started rereading that post and decided to try moving the VCC jumper from 5v to 3.3v and that seams to have resolved the issue. I still get occasional data errors but it is working 99% of the time. I'd love to know why as this seams to be the reverse of what everyone says is correct but hey it works so I can log data now. Woo hoo! Thanks again. Great community here.

Hi, I have the same issue when datalogging. Green light when engine is off and red light and noisy data when engine on. Im gonna try changing the jumper from 5 to 3.3 on my usb connector. But did you find out anything more regarding this?