P0121

TPS/Pedal Position Sensor Circuit Range/Performance

P0121
TPS/Pedal Position Sensor Circuit Range/Performance
Address soon
Ranked Possible Causes
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What You'll Notice

Hesitation or jerky acceleration, Idle surges, CEL on, Reduced power (limp mode) in severe cases

Cost Estimate
JobRange
Throttle body cleaning (DIY)$15–$30
TPS sensor replacement$60–$180
Electronic throttle body replacement$250–$550
Parts You Might Need
• TPS sensor
• Throttle body assembly

These percentages are general patterns, not a diagnosis for your specific vehicle. Have a technician scan your car to confirm which component is actually failing.

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