4/27/2023 0 Comments Inpa elm327![]() ![]() LEDless dongles of about 1/3 the size are also available. The LEDs do activate when the device is in use, but it’s not clear if they have specific meanings. Here’s the dongle – it doesn’t know what’s about to hit it. ![]() I’ll leave it to an enterprising reader to figure out the BOM cost. Then, curiosity got the better of me, and I had to see what was inside. Sure enough, it did work – well enough at least to report the misfire code and let me turn off the engine light. I found that the usual Chinese sources carried many wired & wireless adapters, and I ended up getting this adapter from I knew it might not work, but it had good reviews, and I wasn’t risking much. But when I discovered Chinese sources for $9-$20 USB & Bluetooth adapters, I couldn’t say no.Īctually, my search for OBD capability was inspired by a persistent check-engine idiot light (spoiler: it was only a cylinder misfire – something I could have already told you before the light ever came on!). I’m not into cars to such an extent that I have an OBD-II analyzer in my toolkit.
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