Air/Fuel Ratio Calculation?
 

I am curious to know what my air/fuel ratio is since I have made an intake modification. Is there a way to calculate it using the records the gryphon programmer with record or just simply any way of calculating it?

It's always going to be around 14.64:1 unless you're in open loop (near WOT) or the PCM isn't able to correct anymore for a severe lean or rich condition.

That is why i want to calculate my ratio, to make sure it is right around 14.64:1 and something isn't wrong and my truck running too lean.

If your truck is running TOO lean, your truck will set lean codes and turn on the check engine light. The PCM is able to correct up to about 40-50% plus or minus (short term and long term combined) on the injector pulse width to correct for lean and rich conditions. Once the PCM begins to correct more than 15%-18%, you will get a check engine light.

If you want to see how much your air/fuel ratio is being corrected, you'll have to look at the long-term and short-term fuel trim correction data. If the LT fuel trim is within 10% (and ST is stabilized at 0-2%), then there's nothing to worry about.

Basic answer, if your check engine light isn't on and you're not experiencing surging, hesitation, detonation, etc., your A/F ratio is 14.64:1