I ordered the Tuner cat OBDI LT1 Pro Tuning Kit datamaster and was wondering if it reads diagnostic codes ? can this program do everything I need to diagnose and tune my car.

Each kit includes:

C.A.T.S. OBDI Tuner Program
$EE ECM Definition File
(DataMaster Program)
Software CD
ALDL Cable
ALDL to USB Converter
Extra long 10 foot USB cable

http://www.tunercat.com/

 

Yes.. assuming you ordered the "LT1-Pro-Tune-1" 12 pin ALDL cable for you '94 you have it all. Not sure why they give you what looks like a serial ALDL cable with a USB converter. The straight ALDL to USB cable is the most trouble free and does not require +12 v power to the serial adapter. Maybe they figured some people would have older serial port PCs w/o USB ports and this is usable in either case..