EngineDIYCommunity Starter

2017 Porsche 911 — single-cylinder misfire comes and goes

TowCollectorCommunity StarterNov 7, 20252017 Porsche 911 Carrera SAustin

A cylinder-specific misfire code appeared after one rough start, then cleared and the engine feels normal. Plugs are not very old. Would you swap coils, inspect plugs, look at injector data, or wait for it to return?

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