Go with the wifi. I bought one not long ago. I bought 2 different apps. One didn't work worth a **** & would stall my excursion. The other you have to pay for the app then pay for the Ford PID pack. The crap one was OBD fusion. The other was dash command. With the dash command you have to pay extra to read the duty cycle & HPOP readings

 

Well I got to try a "Bluedriver". It works pretty wellGot to use it on my 98 Explorer and my buds 03 Explorer. I looked on the Bluedriver website to see if work on my my early 99 and said it wasn't compatible. Communicated with their Tech support and their reply to why it isn't compatible with mine " 7.3L has a incomplete OBD2 implemention. I tried hooking it up just to see what would happen and well the truck wouldn't start with it in and if I put it in while running the truck would shut off.

 

I use an Isaddle ($12) and Torque Pro ($5) on mine (Droid based however). Works great, but will stall the truck if I start adding displays. Have learned just to be KOEO position for setting up screens. It's never stalled if connected before starting and I just am observing the displays. Add the track recorder app to have a dashcam with overlayed PIDS.

https://www.amazon.com/iSaddle-Blue...Windows/dp/B00OMT6UEK/ref=sr_1_3?ie=UTF8&qid=1466375201&sr=8-3&keywords=isaddle

 

I use the OBDlink LX with the Torque App Pro to read PIDs and Car Gauge Pro to read and clear DTCs and run Buzz and CCT tests.

 

Do these scan apps work for koeo testing?


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I looked in my App Store,Torque pro app does not show up on my iPhone. It looks like I need an android.

I have the same questions as the OP.

 

You can research which apps work on the Apple platform. Or buy a cheap Android phone or tablet.

 

I recently bought a foseal wifi (19.00 on Amazon) and use forscan. Seems to work well. Dashcommand is not good to for changing any pid request while the motor is running (driving). It has a tendency to kill the engine. I've seen videos of forscan being used to run buzz tests but I am unable to figure it out. I've read codes and monitored icp and ipr numbers.


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Just installed the Windows version of forscan. I have a virtual Windows environment on my Mac. It's much better than the iOS app. It's able to do buzz test, cylinder contribution test, koer switch self test, and a few others.


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