
Which ELM327 Adapter to Buy, and Why Cheap Ones Fail
Most OBD2 connection problems are the adapter, not the software. What the ELM327 chipset actually is, how the clones differ, and what to look for when buying.
AutoScan journal
ELM327 — Fault codes explained properly, what each one usually costs to put right, and how to check it yourself before anyone quotes you.