Cracking the P0120 Case on Your 2022 Lincoln Aviator
Your 2022 Aviator's refined 3.0L twin-turbo V6 just went from producing 400 hp to barely moving the vehicle — and the check engine light confirms something is wrong. P0120 identifies a throttle position sensor circuit malfunction in the drive-by-wire throttle system. Built on Ford's D6 platform (shared with the Explorer), the Aviator's electronic throttle body integrates the TPS into the assembly. When voltage signals deviate from the expected range, the ECU protects the drivetrain by entering a limited power mode.
Clues at the Scene
- Check engine light illuminated
- Wrench warning icon may appear
- Drastic power reduction
- Throttle pedal may feel dead or delayed
- Rough or surging idle
- Possible stalling at stops
- Adaptive cruise and other driver-assist features may disable
Top Suspects
1. Electronic Throttle Body Failure
The Aviator's 3.0L twin-turbo V6 uses a high-flow electronic throttle body. Internal TPS wear or motor failure causes erratic voltage readings. The TPS is not separately replaceable — the entire throttle body is swapped.
2. Turbo System Carbon Contamination
The twin-turbo setup generates elevated crankcase pressures. Blowby vapors routed through the PCV system coat the throttle bore with carbon deposits. At typical 2022 mileage, this is a very likely contributor.
3. Wiring Heat Damage
The Aviator's engine compartment runs hot with twin turbos, intercoolers, and close-packed components. TPS wiring near exhaust components can suffer insulation degradation.
4. PCM Calibration Issue
Ford may have released updated PCM software for the 3.0L twin-turbo throttle system. A flash update through IDS or FDRS can recalibrate throttle parameters.
5. Pedal Position Sensor
The dual APP sensors in the pedal assembly can develop wear, especially on vehicles used in stop-and-go traffic where the throttle is constantly modulated.
Investigation Steps
- Scan with FORScan or dealer IDS — note freeze frame and companion codes
- Inspect throttle body connector for heat damage
- Check throttle bore for carbon accumulation
- Monitor live TPS data during throttle sweep — look for dropouts or spikes
- Check for Ford/Lincoln TSBs on D6 platform throttle issues
Cost Breakdown
- Throttle body replacement: $400–$850
- Throttle body cleaning: $200–$400
- Wiring repair: $200–$500
- PCM software update: $150–$300
- APP sensor replacement: $200–$400
Can I Drive With P0120?
Only to safety at very low speed. The Aviator in limp mode is not safe for traffic. Use Lincoln roadside assistance for a tow. Check whether your 2022 Aviator is still within Lincoln's 4-year/50,000-mile comprehensive warranty.
DIY vs Professional
Verify warranty status first. Out of warranty, throttle body access on the 3.0L twin-turbo is tighter than average due to turbo plumbing. Carbon cleaning is a reasonable first step. Full throttle body replacement requires removing intake components and may benefit from professional hands. FORScan can handle the relearn procedure for tech-savvy owners.
Frequently Asked Questions
Does the Aviator share parts with the Explorer?
The Aviator and Explorer share the D6 platform. The 3.0L twin-turbo V6 is specific to the Aviator (the Explorer uses a smaller engine), so the throttle body is not directly shared with the base Explorer.
Can I use FORScan to diagnose P0120?
Yes. FORScan can read P0120, view freeze frame data, monitor live TPS voltage, and perform the throttle body relearn procedure. It's a cost-effective alternative to dealer diagnostics for Ford/Lincoln vehicles.
Is the Aviator Grand Touring (PHEV) affected the same way?
The Aviator Grand Touring plug-in hybrid uses the same 3.0L twin-turbo V6 with an added electric motor. The throttle body is the same, so P0120 diagnosis and repair is identical.
How much does a Lincoln dealer charge for diagnosis?
Lincoln diagnostic fees typically run $150–$250. This is often applied toward the repair cost if you have the work done at the same dealer.