DTC code P0300: Random/multiple cylinder misfire
P0300 means the engine is misfiring across more than one cylinder, or in a pattern the computer can’t pin to a single one. Worn spark plugs, failing ignition coils, and vacuum leaks are the usual causes. The engine shakes, loses power, and the check engine light sometimes flashes.
A flashing light means an active misfire, and that can wreck a catalytic converter in minutes. Intangles flags active misfires in real time so a truck can get pulled before that happens. Want to see how? Share your email to get started.
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