Re: Anyone use spectre?
Wideband is an oxygen sensor that reads the actual air to fuel ratio. We have widebands from the factory, I'd try seeing if you can scan that with some kind of obd2 device. Most older cars have narrow band, which just show either rich or lean, they don't tell you the exact AFR.
Widebands are very important for accurate tuning. You can get close with a narrow band, but not near as accurate and it takes more time.