Bought a Kitbest Wi-Fi OBD2 reader off Amazon for like... $10.
Downloaded Torque Pro onto my phone.

Yay! Success!

I have no codes. So.... now what?
Can this tool be used periodically to just kind of check things over? Or.... would anything it finds that isn't within spec be triggering a code?

It also reads my 2010 Hyundai Santa Fe for which I found additional sensors plugin.

NEXT question:
If the X-type will display codes on screen... I have the Premium package with the Nav screen... does anyone know WHAT codes it will display? Would the onboard system display like ABS codes and C codes and stuff a basic OBD2 setup doesn't show?

LAST question:
Is there a reference someplace for what the values we're seeing SHOULD be? Like... fuel trims, fuel pressure, Oxygen sensor volts, etc?

Thanks!

 

There's lots of YouTube videos on using OBD scan tools. Just search for what you're looking for.

 

yardbird, try holding your finger on the valet button when you first start the radio. After about 10 seconds, it should put the radio into a diagnostic mode. from there if you can read the codes, it will let you. Otherwise you can read the codes from the instrument cluster after you decipher them.

 

The Inst codes date from the car's manufacture so if you read them look for any newer ones on 2nd and subsequent reads.

If that WiFi tool can do live data, check sensors and fuel trims.

It should be reporting pending code P1111 (or P1000 but that would be a worry).

 

It does do live data and I can see the LTFT and STFT as well as fuel rail pressure, etc.
However, I'm not sure what I should be seeing in terms of "normal" behavior and readings. I guess what I'm looking for... in the absence of any codes... is an understanding of the pressures in normal conditions with the thought that I could be spotting anything starting to "slide" off toward a problem before it becomes a problem.

Example:
For an O2 sensor I see volts. I assume it's ok because I have no code. But what's normal? Would I be able to see a trend that would allow me to say, "yep... I see what's coming. Better get prepared to change an O2 sensor at some point."?

See what I mean?

 

O2 volts, one side should be steady, the other side should vary some. Around .8 volts steady, vary .2-.8. You could probably see a trend in failing cats. The app is best on a tablet so you can get bunches of stuff on the screen. You could play with mileage between sport and normal modes, or see the differences.
Not sure if it does wheel speed sensors, if it does that could give a heads up on failure of them. Just play with the app, long press is your friend on any screen. Videos help as mentioned.