MMCD Help

[Rex2342]

I'm just trying to learn more about the parameters of certain things using the MMCD logger. I understand that with the fuel trims 100% is ideal, lower than 100% is rich and over 100% is lean. What I'm wondering about is the other things like Injector pulse, o2 volts, MAF signal, Timing advance, and Fuel Trim o2. I know every car is different but where about should these be reading on a WOT third gear pull? A better understanding of these things would really be helpful in tuning my car but I'm just not understanding what all the data means. My fuel trims are all reading rich (81-85%) but if I lean it out I get high rpm knock. Could it be a boost leak or something sucking in unmetered air making me run lean while the logger shows rich? I've read countless posts and how-to's on tuning and searched but just can't seem to find what I'm looking for.

 

[Quasimondo]

http://www.vfaq.com/TMO/

 

[chicagoavenger]

Does MMCD have intake temps on it? TMo and MMCD have some different readings

 

[Quasimondo]

the value for intake temps is either IAT or AIRT

 

[Rex2342]

It has an airt reading but I never log it. I was told that with the MAFT the temp will always read 86 degrees.