P0220
High SeverityThrottle/Pedal Position Sensor B Circuit
Fuel System
What Does P0220 Mean?
The secondary TPS (sensor B) has a circuit fault. Modern drive-by-wire systems use two TPS for redundancy.
Common Fix
Replace throttle body or TPS
Estimated Cost (DIY)
$50 - $250
Symptoms
- ⚠️Reduced power mode
- ⚠️Limp mode
- ⚠️Poor throttle response
- ⚠️Check engine light
Common Causes
Faulty TPS Blikely
Wiring issue to TPS Bpossible
Faulty throttle bodypossible
How to Diagnose P0220
- 1Check throttle body connector
- 2Compare TPS A and TPS B readings
- 3Check wiring for damage
- 4Replace throttle body if integrated
Need to read or clear this code?
Shop OBD2 Scanners on Amazon →Frequently Asked Questions
- What is TPS B?
- Modern cars have two throttle position sensors (A and B) for safety. If they disagree, the ECM enters reduced power mode.
- Can I just replace one sensor?
- On most modern cars, both TPS are integrated into the throttle body and must be replaced together.