Drivable short-term, but fix now to avoid damage.
This code means the crankshaft position sensor signal is present but erratic or out of its expected range, so the computer struggles to track the engine's exact position. It's commonly caused by a failing sensor, damaged wiring, a worn reluctor or trigger wheel, or sensor air-gap problems. The usual fix is replacing the crankshaft position sensor and checking the wiring and reluctor ring.
$180 – $500
Varies by vehicle and root cause.
It's risky. The car may still run, but an unreliable crankshaft sensor can cause sudden stalling or a no-start situation. Limit your driving to getting it to a shop, and don't plan any long trips until it's repaired.
Most repairs fall between $180 and $500. The sensor itself is moderately priced, but on some engines it's in a hard-to-reach spot, which increases labor. If the reluctor wheel is damaged, costs can be higher.
Yes, it's on the serious side. The crankshaft position sensor is essential for the engine to run, so a faulty signal can lead to stalling or failure to start. It should be diagnosed and fixed promptly.
The computer relies on this sensor to time the spark and fuel injection. If the signal cuts out or becomes erratic, the engine can lose spark and fuel timing momentarily, causing it to stumble or shut off.