r/e46•
STGMA98

MS45.1 TUNE QUESTION

Troubleshooting

Hey everyone, I am trying to help my buddy out.. All I have done so far is adjust the spark table.. Once I flash it, (I am using MS45 Flasher by BTT) I immediately get limp mode, I believe it's limp mode... prior to even starting the car up!

Once it flashes, or during the flash I get a ! symbol, next to the gear indicator on the dashboard, this is happening on this 2004 BMW 33Oi and it has also happened to my father's 325ci , which also uses the MS45.1

any idea what is going on?

https://preview.redd.it/wgo8t1hoek6h1.png?width=199&format=png&auto=webp&s=4a89925128e38527273b9c085adbbd2699d16d9d

Posted Jun 11, 2026, 2:30 AM UTC

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