I have a 93' naturally aspirated Miata with a SpeedyEFI standalone ECU setup. I am trying to run Tunerstudiio's VE analyzer live since I've heard great things about it.

My question is am I able to run this autotune effectively and get my car tuned good enough without using an aftermarket wideband o2 (currently have stock Miata o2 sensor)? I've seen some say you need a wideband and others say it does well even on stock o2 sensor. If anyone could give their input that would be greatly appreciated, thanks

 

No you need a wideband.

 

The whole point of VEAL is that it uses the wideband reading to adjust the fuel table accordingly. The narrowband OEM sensor only has a limited range it can output. If you have MS/EFI/Standalone you need a wideband, no debate.