Hi do have a ELM OBD2 cable, it works on my P38 4.6HSE.
A friend of mine that has a P38 4.0 30th Anniverssary has no board computer. Strange for a limited edition model but useful for an expedition rig. No airbags too but airsprings yes of course.
He'd like to have some infos about his modified V8 (T liners, Piper 285 and others...).
I send him my ELM327 to test. We'll see.
Scangauge II seller told him P38 isn't compatible with this device.