Hey everyone, So I was putting the new haltech in my car, I bought it used off of a member on here. But it was in very good shape.
He turned car off for night. Next morning went to car to do some fine tuning for idle and start up.

Haltech does NOT connect with computer.
No communications is possible.
It is holding the tune, and does start car. and runs... but my laptop does NOT connect with it.. We did everything on the Haltech fault diag page.

Any other ideas? we checked ground.

I am also running Uprev.

 

Show some screenshots of the error. I would suggest a different laptop to start with. I suppose a fault is always possible, but I have never heard of this happening to a haltech, ever.

 

it was a ground lol. Awkward lol