I've got a new usb cable for my laptop to data log the car. I cant seem to get it to connect and yes I've loaded the windows drivers. I belive I read AGES ago that the 730v6 and 730v8 cars used a different ohm resistance to read the ecm or something? Is this true, and if so can someone point me to the info.

Dale, no resistor is required to data log. Using a 10K resistor will put both the V6 & V8 ECM into ALDL mode, which changes how the ECM operates. No need to do that.

Good possibility the new USB cable is on a different port. If you can test the USB cable with something like Hyperterminal (included with some Windows O/S's), and looping back pins 2 & 3 on the DB9 (turn off flow control), anything typed should be echoed back to the screen.

If you can get that to work with a known setup, then switch to the new USB cable it will be helpful in troubleshooting.

The biggest difference between the V8 (TPI) and V6 '730 ALDL is that the V6 chatters. While the V8 does not. This makes it tough to get the V6 ALDL to stop chattering and send data.

RBob.

Rbob, after 2 hours or searching last night after I posted that. I found a post where someone said to change the com port it looks at. Which I thought it "auto found". I have yet to play with it since.

Cable is a moates which I doubt its bad.