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Discussion Starter · #1 ·
This happens when I accelerate hard, usually starting from highway speeds. No code is generated and the CEL resets when I shut off the engine. On-screen message says the engine is operating with limited power, but that's clearly not the case.

How do I find out what's wrong? Why is no code generated? Thanks.
 

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Discussion Starter · #3 ·
That no DTC is stored is unlikely.
Well, it happened this morning and I took it to my indy while the car was still running and the CEL still displayed on the dash. He patched his reader in and saw no codes. I'll check back with him to make sure his reader can detect all the proprietary BMW codes, but I would think it could, given his customers.

Also, is it unusual for the CEL to reset on its own?

Thanks.
 
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