Drive with caution — fix soon.
This code means the computer detected an abnormally high voltage in the wiring or circuit that controls cylinder 5's fuel injector. It usually points to an open circuit, a bad connector, or a failing injector that isn't switching properly. It's often fixable by repairing the circuit or replacing the injector, without major engine work.
$120 – $450
Varies by vehicle and root cause.
For short trips, usually yes, but you shouldn't rely on it. The affected cylinder may run poorly and cause rough idling or lost power. Have it checked soon to prevent converter or engine damage.
Repairs typically range from about $120 to $450. A simple wiring or connector fix is on the lower end, while replacing the injector with diagnostic labor costs more.
It's a moderate concern. The car usually still runs, but a misfiring cylinder hurts fuel economy and stresses the engine. It's best to fix it before the issue grows.
It means the computer sees too much voltage in the injector control circuit, suggesting an open or shorted wire or a faulty injector. The injector may not be firing properly, so cylinder 5 isn't getting the right fuel.