My car runs pretty well after XS tuned my PFC but I am pretty sure it is running too rich. How do I lean out my A/F mixture? Do I use the injector map or PIM volt modes to achieve this? Or am I way off here? I will have a wide band O2 hooked up while I do this. Any suggestions or procedures to follow would be appreciated. Dont want my motor to go booom!!!

thanks
Kelvin

 

Why do you think you are running too rich?








Wayne
http://www.phase2motortrend.com

 

It's better to run a little rich than lean. At least you are shooting some huge flames. How much did XS charge you to tune the unit? If I were you I would leave the settings alone. Anyway, good luck on the dyno and post up your RWHP, I'm really curious to know how much hp your car is pulling.

 

XS charges $150.00 plus shipping for the reprogramming. Tristarx, I think I'm running too rich because of the excessive amounts of unburned fuel coming from my exhaust. I'll find out for sure when I take it to the dyno but I wanted to know how to take fuel out before I got there. Dyno time costs $$$$ Oh yeah, XS advises after their reprogramming you should "fine" tune your car on a dyno with a wide band O2.