E30 Motronic 1.3 error 1211

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jhec23
Posts: 1
Joined: Wed Feb 16, 2022 4:08 pm

E30 Motronic 1.3 error 1211

Post by jhec23 »

Just finished tuning an e30 with 173 dme and im geting a check engine light for 1211. When I try to load downloaded bin without modifying it then light is off.. But when I load a modified bin after saving it with tunerpro then I get the error code again.

I think it's something about the checksum but I don't know how to fix it. Car drives great, just the light is on.

Any help is highly appreciated. Thanks!
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