I was wonderingwhat kind of data the SCT tuner can log? Do you you just keep it plugged in and ride down the road?

 

http://www.sctflash.com/forum/

 

I dont think your handheld tuner actually logs data you have to have a laptop

 

the dynojet wideband commander does data logging if you want to invest in one of those there pretty awesome but thats all it is for is basically data logging no tuning capabilities it comes with a AF gauge wideband 02 sensor and the little ecu for the data logging

 

and i forgot to mention its really pricy but check it out and all the features its has it even has a warning light you can set parameters and when the engine drops below them a warning light will come on to let you know something isnt right then you can plug in the laptop and know what the problem was i say its worth the safety of your engine