P0224 Code: Throttle/Pedal Position Sensor B Circuit Intermittent
🟠 Moderate severity · drivable
Drivable, but the throttle signal cuts in and out, so response may be erratic — fix it soon.
What P0224 means
The secondary throttle or accelerator pedal position sensor (circuit B) is sending a signal that drops out and comes back. These sensors tell the computer how far you're pressing the pedal, and an unstable reading makes it unsure of your throttle input.
Symptoms
- Check engine light is on
- Erratic or delayed throttle response
- Intermittent loss of power or limp mode
- Hesitation when accelerating
Common causes
- most common: Loose or corroded sensor connector
- common: Damaged wiring that intermittently opens or shorts
- common: Faulty throttle or pedal position sensor
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Clean and re-seat the sensor connector | Yes | $0–50 |
| Replace the throttle or pedal position sensor | Yes | $50–200 |
| Repair damaged sensor wiring | Mechanic | $50–150 |
Frequently asked questions
Can I drive with a P0224 code?
Yes, but throttle response can be erratic because the signal drops out. Fix it soon for safe driving.
What causes a P0224 code?
An intermittent signal usually comes from a loose or corroded connector, damaged wiring, or a failing position sensor.
How much does it cost to fix a P0224?
Usually $50–200 for a new sensor, or less if cleaning the connector fixes it.
Related codes
P0222
P0222 Code: Throttle/Pedal Position Sensor/Switch B Circuit Low Input
P0223P0223 Code: Throttle/Pedal Position Sensor/Switch B Circuit High Input
P0122P0122 Code: Throttle Position Sensor/Switch Circuit Low Input
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.