The following was cut and pasted from my posts on the ecmtuning forums. If someone has an idea of what to look at, that would be awesome. If you have a ecmlink cable that I can borrow, that would be equally as awesome!
It's been a frustrating day.
I was rechecking the ISC and TPS settings, and ECMLink was working just fine. Closed the hood went to reconnect to Link and "No Response Received". After messing with it for a couple of hours, I uninstalled and reinstalled Link, and it worked. Kinda. It lost connection again mid stream.
So here is what I know:
The car starts and drives.
Stock boost gauge goes to the middle, and CEL illuminates and then goes away.
Pin 12 at the diagnostic port is grounded.
Pin 1 to Pin 1 at ECU has connectivity.
Pin 10 to Pin 2 at ECU has connectivity.
I was setting BISS when it went sideways, so maybe I left the diagnostic box checked under MISC and that's the issue?
When it tries to connect, I see two pulses on the green light on cable.
Sometimes it would start to connect, and then fail with the same message. This seemed to happen when the car was running.
I'm trying to get ahold of a known good cable. Because it is so sporadic, I'm guessing it's wiring, either car or cable.
Thanks in advance.