Drive with caution — fix soon.
This code sets when the engine control module counts more high-resolution timing pulses than it should from the 'B' reference sensor. It's often caused by electrical noise, a damaged or contaminated reluctor ring with extra or distorted teeth, or a faulty sensor or wiring. The fix is usually replacing the sensor, cleaning or replacing the trigger wheel, or repairing wiring, without major engine repairs.
$150 – $450
Varies by vehicle and root cause.
For short trips, usually yes, but don't rely on it long-term. If the engine runs rough or stalls, get it checked promptly to avoid being stranded.
Most repairs run between $150 and $450, depending on whether it's a sensor, wiring, or reluctor ring issue.
It's moderately serious. It rarely damages the engine, but the disrupted timing signal can cause poor running, so it's best addressed soon.
Usually electrical noise or a contaminated or damaged trigger wheel makes the sensor read extra pulses, so the computer counts more than the engine actually produces.