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My Dx ELM327 and Arduino shoud arrive in few weeks, and I'm not sure which way to go: MPGuino or OBDuino. It turns out my car '98 Opel Astra G does send injector pulse width over diagnostic connector (KWP2000/ISO14230), so I don't know whether I sould go around engine bay tapping speed sensor and injector pulse wires, or just use ELM327 and OBDuino.
First solution is obviously cheaper, but I'm not sure which is better.
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