Guides
What’s worth knowing before you plug anything in, without the jargon. It applies to Final OBD and, mostly, to any other diagnostics app.
Which OBD2 adapter to buy for your phone
Cheap ELM327, vLinker or OBDLink: when each one is enough and which work with iPhone.
How to read and clear your car’s fault codes
Step by step, what each code means and when it makes sense to clear.
The Spanish ITV and the OBD socket: what they read
What the Spanish test centre reads through the OBD socket, what counts as major and how to avoid surprises.