i was just curious as to what all i need to be logging when doing a pull. my wideband isnt hooked up to my laptop. im running a uego right now. somebody give me some tips here please. thanks guys.

 

TPS
RPM
2 Byte Load
A/F Ratio
KnockSum
TimingAdv
O2Sensor
InjPulseWidth
AFRMAP

 

one question to that. why the o2 sensor?? i thought they were inaccurate.

 

fuel trims, air flow Hz

the speed sensor resolution is lousy, but i log that too.

 

thanks for the input man. i was wondering about the fuel trims. i talked to someone else who also said to monitor those.

 

I use that value to see if the car is running in Open or Closed Loop.

 

oh ok i gotcha. when does it change from open to closed or vise versa???

 

ok i got a problem fixed today. my int. manifold gasket was leaking and throwin my af reading off. now that everything is in proper order im ready to tune my car. the map im using is crap so ive got a lot of work to do. do i need to monitor my stft??