This may be old news for some, but I just found out about this.

Tuner Cat is now available for some OBD-II applications.
Definition files are available for Vortec and LS1 trucks as well as the 4.3.
Other applications include F bodies, Corvette, Impala, GTO and CTS-V.

No L67 or DOHC stuff yet, however.

Tuner - http://www.tunercat.com/tnr_desc/obd2tnr_desc.html There is also a free demo available for download.
Definition files - http://www.tunercat.com/tnr_desc/vdf_sup.html

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Raydar
88 3.4 coupe...........

Praise the Lowered!
Read Nealz Nuze!

[This message has been edited by Raydar (edited 11-23-2005).]

Cool! A friend of mine was wanting to use an LS-1 ecm for his project, but at the time there was no readily available and economically priced editor for it, so he ended up using an LT1 ecm instead. I'll have to share the news.