[wavsine]

$5 OBD2 Bluetooth Diagnostic Interface

Cheapest I have ever seen:

http://www.ebay.com/itm/32145798455...campid=5335869999&afepn=5335869999&rmvSB=true

 

[daspazzZX3]

I haz an 02 and I bought a cheap one. It wouldn't work with the gauge app in tried. And it also wouldn't work. With my other android device besides my phone. I ended up buying the kiwi2 since I already had a plx airtofuel gauge and sending unit setup. It worked great with everything....

 

[schrodingersbox]

I've got this little unit. Think I paid 15$. So far it works with the Focus via my Android devices although reading from the ECU seems hit or miss. Have to play with it some more. Worth 5$!

Edit: So cheap I had to buy one for my Dad!