Help! Cannot connect to PCM!

[7420NW7TH]

I bought 2.1.14 for my '98 Firebird and have been happily tuning for months now. I then used it to scan and some minor tuning to my '99 GMC Sierra for the last 2 weeks or so. Now, I cannot read or write to my Firebird. I get the "Interface was found but no vehicle power was detected" error. The cables are hooked up fine. The car starts and runs great. It still scans, reads, and writes to the GMC Sierra jsut fine, but not to my Firebird. I downloaded and installed the newest version 2.1.18 and still get the same result.

Please help because I cannot drive my Firebird until I change some things in my tune.

[Stuchlik]

Did you check the fuse for the cigarette lighter? It also powers the OBD2 terminal.

[7420NW7TH]

Did you check the fuse for the cigarette lighter? It also powers the OBD2 terminal.

Doh! That would be it. Thanks

[exit]

If it's not the fuse it could be the acctual terminal. My terminal was corroded and I had to clean it out and replace some of the connections.

Good luck