I did a fair bit or research on it and found that you can only use it if you have air flow meter. To be honest i wouldnt even bother, i bought the jay car air/fuel display and its so inaccurate its not funny, then again its only cheap and was never designed for tuning. So i doubt the air/fuel adjuster will be super accurate.
Saying that, half the fun is in building it.
If you really wanna adjust fuel mixtures go for a 'real' piggy back unit or even better full aftermarket ecu. :2thumbs:
