BMW 316 i service light reset / Engine Misfires?

please help me to instruct how to reset the service lights without bmw diagnostic tool / there's a ignition brake over 3000rpm at slow running (1000~3000rpm) ignition spark is checked its fine. But over 3000rpm ignition break is identified, spark plugs are new, plug wire were changed, fuel pump were replaced there was no improvement. What might be the cause???BMW 316 i service light reset / Engine Misfires?jew stuck in the tailpipe?

vb

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