P0121 on Your 2024 Lincoln Aviator
A P0121 on your 2024 Lincoln Aviator indicates the PCM has detected inconsistent throttle position sensor data. The voltage is within limits but the pattern is erratic—our detective has identified the throttle body as the focus of this investigation.
The 2024 Aviator uses the 3.0L twin-turbo V6 (400 hp) or the Grand Touring PHEV (494 hp combined). Both use direct injection and electronic throttle control. On a vehicle this new, software calibration leads the suspect list.
Symptoms
- Check engine light and possible wrench icon
- Hesitation on acceleration
- Idle roughness
- Turbo response muted
- Possible reduced power
Top Causes
- PCM software calibration – Ford refines the twin-turbo platform software regularly. Likelihood: 40%
- Carbon deposits – DI twin-turbo carbon from short trips. Likelihood: 25%
- Throttle body defect – Manufacturing issue. Likelihood: 20%
- Connector issue – Factory assembly problem. Likelihood: 10%
- Boost system anomaly – Wastegate or intercooler issue. Likelihood: 5%
Cost
- All repairs: $0 under warranty
- Out-of-warranty reference: Cleaning $120–$200, replacement $400–$700, software $100–$200
Lincoln's Premium Service
Your 2024 Aviator is fully covered under Lincoln's 4-year/50,000-mile and 6-year/70,000-mile warranties. Lincoln offers complimentary pickup and delivery with a loaner vehicle. All P0121 repairs are at no cost.
How AutoDetective AI Can Help
Upload your scan data to AutoDetective for a free preliminary diagnosis specific to the Aviator's twin-turbo platform.