Registered: 15/08/2000
Posts: 4859
Loc: New Jersey, USA
Greetings!
I wouldn't think it was the tuner kit. However, if the kit was a recent installation, perhaps one of the wires on the sled pulled out of the harness, is loose or otherwise causing problems. You might also want to check your serial cable.
_________________________ Paul Grzelak 200GB with 48MB RAM, Illuminated Buttons and Digital Outputs