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      01-22-2021, 07:07 AM   #13
Dormermike
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Drives: Bmw f10
Join Date: Dec 2015
Location: Uk

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There was a guy recently had a misfire and it was a broken spring but that misfired all the time, not intermittently.

No other codes?

Might be worth a look around bimmerprofs website for odd misfire scenarios.

Afaik a dud or dodgy mosfet can be intermittent.

Might be worth cracking out the multimeter and checking the mosfet and wiring, and that the ecu is not currently bathing in water.

Also have you considered a compression test...
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