Drive with caution — fix soon.
This code means the second throttle or accelerator pedal position sensor (sensor B) is sending a reading that's out of the expected range or doesn't match the other sensors. It often comes down to a worn throttle position sensor, a dirty throttle body, or wiring and connector problems. Repairs usually involve cleaning or replacing the sensor and checking the wiring, and it's typically fixable without major engine work.
$120 – $400
Varies by vehicle and root cause.
For short trips, usually yes, but the car may limit power to protect itself. Since throttle problems can affect how the car accelerates, get it checked soon rather than relying on it for long drives.
Most repairs run between $120 and $400. A simple throttle body cleaning is on the low end, while replacing the throttle position sensor or repairing wiring costs more.
It's a moderate concern. The car often still runs, but reduced throttle response is both annoying and a potential safety issue, so it shouldn't be ignored.
Modern throttle systems use two or more position sensors that cross-check each other for safety. P0222 points to the 'B' sensor reading out of range compared to the others, which is why the computer flags it.