I'm getting ready to do a pcmforless tune hopefully pretty soon and I've already been to the dyno. I'd like to tell him my air/fuel ratio to increase the effectiveness of the tune but don't know what the number I am looking for is on this readout which goes from just under 2000 rpm to 5600 rpm.

Is it the highest the a/f number gets, or where it's at at peak hp? It's at about 12.9 at 2500 rpms and 11.2 at peak hp. So how do I tell him what my a/f ratio is?

 

Copy it and include it in the email for the tune.

 

ok, I just thought I'd heard people say something like "my a/f ratio is like 12.4", so I thought there was an average I was supposed to give.

thanks.