I have recently completed the 747 to 8625 swap using the schematics from this thread. https://www.thirdgen.org/techbb2/sho...hreadid=272975
The adaptor is working, the car is running, i get no ses light and no error codes.

Both tunerpro and datamaster says: aldl cable is working but the pcm is not connected.

I´m using a two transistor cable and an USB/seriell adaptor.

WHat's wrong!

 

The USB to serial adapter is the problem. I tried 3 different adapters and 100's of different settings and could never get one to work. I even tried a PCIMCIA to serial card that didn't work either. I finally gave up and bought a moates USB data logging cable, it works, but I still have a lot of problems with that and datamaster.

 

if there is a resistor connecting a and b terminal i think u have to disconnect that until starting up then it can be reconnected but im not real sure its been a while since i read about this...do a search w/ my name and i started a thread that links to where i found that info.

John

 

The USB to serial adapter worked with the 747 and winaldl so i dont think thats the problem

 

The low speed 160 baud is easy enough to get working with any USB-serial adapter.

However, the 8192 requires a 'non-standard' baud rate and as such, most serial usb adapters won't work.

 

I have successfully connected to this PCM with a moates USB ALDL cable, and a Mastach 9pin serial type. I have tried 3 different usb-9pin adaptors without any luck..

 

So whats my options? Is the moates usb aldl cable the only thing that works?

I have a 25 pin lpt port on my laptop can i use this in any way?

 

Another vote for Craig's unit..........it works as promised every time.

I have used it with the 8746 tbi /winaldl and the faster 8625/Datamaster.

DM

 

Yep same here.. Craigs USB ALDL cable is the one you want..

 

Has anyone have problems with the craigs USB ALDL cable in datamaster? Mine will record for about 5 min then time out. I have this problem in the beta and non-beta version. I am running a 730.

 

No problems here logging with a mastach serial data cable on an 8625.