There are good systems that will use the OBD2 adapter, and probably will do most of what you want. But they are limited to engine and emissions related stuff to some extent. There are lots of OBD2 systems, they work on all cars (past a certain date) because the OBD2 standard is internationally required. The computer (or App on the phone) does all the clever stuff. An ELM237 should not do that, it is just an adapter between the car CAN bus and the computer. Terms in the advert like detecting OBD2 system automatically by the adapter are worrying. That is the price for delving into systems like airbags, door modules and the GEM, that OBD2 knows nothing about. It is very difficult to match the two together.įorscan is not an OBD2 system, it goes much deeper into a Ford car than that, and relies on full ELM237 compatibility. Essentially the WiFi protocol is fundamentally different to the basic serial protocol that the original ELM237 was based on. Looking at the Forscan site, WiFi ELMs are particularly notorious for not being properly compatible. ELM237 is a proprietary system that has been copied and cloned many, many times, with varying degrees of compatibility. It is 99.9% certain that the adapter is at fault in the sense it is not a true ELM237 copy. It won't even try to connect to the above adapter, I thought it might have been a faulty ELM327 so I tried a couple of free apps, they seem to have worked so I guess the adapter is ok.
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