Hi Bros out there,
Can anyone teach or enlighten me a easy way to tune a vafc in my ride. I do have an apexi turbo timer which display the airfuel ratio but the problem I met with is that no one in Singapore is able to tune this thing.Any help from bros out there is appreciated. Thank you.

 

do you have a wideband O2 sensor? you will NEED a wideband O2 sensor to accurately tune the vafc.

 

I didn't know a turbo timer displayed A/F ratio... but yea, you need a Wideband O2 at least, and I would get rid of the VAFC and go standalone.

 

whats the reason to go standalonde compared to vafc, i can see that the options for tuning would be more, but what is soooo much better. Just tryin to understand myself, as i just got into the honda game