P0243 on 2019-2022 Ford Edge: Wastegate Solenoid Causes and Fixes

What's Unique About the 2019-2022 Ford EDGE

For this generation of Ford Edge with the 2.0L EcoBoost engine, the P0243 code is very specifically linked to known mechanical and electrical issues with the electronic wastegate actuator assembly. Ford has issued multiple Technical Service Bulletins (TSBs) acknowledging that symptoms like a lack of power are often due to a missing e-clip on the actuator rod or a completely inoperative electronic actuator. This is different from many older or different vehicles where the cause is more likely to be a vacuum leak, a separate vacuum-operated solenoid, or boost leaks in the piping.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• Illuminated Malfunction Indicator Lamp (MIL) or Check Engine Light.
• Wrench light may appear on the dashboard.
• Significant lack of engine power, especially during acceleration.
• Vehicle may enter 'limp mode', limiting RPM and speed.
• Cruise control may not function.
• Unusual noises from the turbocharger area, such as a loud buzzing, grinding, or servo-like noise during engine startup or shutdown 🎬 Watch: Hear what a failing actuator sounds like during startup. as the actuator performs its self-test.

Most Likely Causes

1. Missing Wastegate Actuator E-Clip 🔴 High Probability → Shop Turbocharger This is a known issue documented by Ford in TSBs #SSM 50485, #SSM 50171, and #SSM 49427. The clip can fall off due to vibration and heat cycles, causing the actuator rod to disconnect from the wastegate arm.
   How to confirm: Visually inspect the turbocharger wastegate actuator, located on the passenger side of the engine. Check if the actuator rod is securely connected to the wastegate arm with an e-clip at the pivot point. If the rod is dangling, 🎬 See a video of the common wastegate rattle and rod play. the clip is missing.
   Typical fix: Install a new e-clip. Ford's official repair is to use the entire service kit (part number K2GZ-9G488-B for the Edge) which includes the actuator, rod, and both e-clips to prevent recurrence.
   Est. part cost: $5 - $15 for a clip, or $90 - $150 for the full actuator kit.
2. Failed Turbocharger Wastegate Actuator 🔴 High Probability → Shop Turbocharger This is the other primary failure noted in Ford's TSBs. The electronic actuator motor or its internal position sensor can fail, causing a circuit fault. Owners report this failure at relatively low mileage.
   How to confirm: Using a diagnostic tool like FORScan, observe the actuator's commanded position versus its actual position during startup or while running. A discrepancy or no movement indicates failure. You may also hear a loud buzzing or clicking from the actuator during its startup/shutdown self-test cycle, which is a sign of impending failure. A multimeter can be used to check resistance across the solenoid terminals, an out-of-spec reading (often outside 10-30 ohms) indicates failure.
   Typical fix: Replace the entire wastegate actuator assembly. 🎬 Watch: This walkthrough shows how to install a new actuator. This part bolts to the turbocharger housing. The recommended part is the full kit, K2GZ-9G488-B.
   Est. part cost: $90 - $150
3. Damaged Wiring or Corroded Connector 🟡 Medium Probability The wiring harness and connector for the actuator are located in a high-heat area near the turbo and exhaust, making them susceptible to damage over time from heat and vibration.
   How to confirm: Visually inspect the wiring going to the wastegate actuator for any signs of melting, chafing, or breaks. Unplug the connector and check for corrosion, moisture, or bent/spread pins.
   Typical fix: Repair the damaged section of wiring or clean/replace the electrical connector.
   Est. part cost: $10 - $50

Rare But Worth Checking

• Non-Visible Damage to Actuator Rod: TSB #SSM 50485 mentions that non-visible damage to the actuator rod itself can be a cause for this code and associated symptoms. This is why Ford recommends replacing the entire kit (actuator, rod, and clips) rather than just one component.
• Blown Fuse: A blown fuse for the engine control circuits can cause this code. While not common, it's a quick and easy check in the engine bay fuse box before replacing more expensive parts.
• Faulty Powertrain Control Module (PCM): → Shop Engine Control Module (ECM) In very rare cases, the driver circuit within the PCM that controls the actuator can fail. This should only be considered after all other possibilities (actuator, wiring, clips) have been definitively ruled out by testing voltage at the actuator connector.

Diagnosis Steps

1. Scan the PCM for all stored trouble codes. Note if P0243 is present with P0299 or other wastegate-related codes listed in the TSBs.
2. Perform a thorough visual inspection of the turbocharger wastegate actuator, which is mounted on the turbo itself. Look specifically for the small e-clip that secures the actuator's pushrod to the wastegate arm. The area can be tight but is often visible from the passenger side wheel well or from underneath the vehicle.
3. If the e-clip is missing, this is the most likely cause. The rod will be disconnected from the arm.
4. If the clip is present, inspect the electrical connector and wiring going to the actuator for any signs of heat damage, corrosion, or loose connections.
5. With the engine off and key on, have an assistant start the car while you observe or listen to the actuator. It should cycle through its full range of motion as a self-test. If it doesn't move, makes loud grinding/buzzing noises, or moves erratically, the actuator has likely failed.
6. If the actuator and wiring appear fine, use a multimeter to check for proper voltage and ground at the actuator connector according to the vehicle's wiring diagram. Also, check the resistance of the actuator's internal solenoid.
7. If all wiring and the actuator test good, the final, though rare, possibility is an internal fault in the Powertrain Control Module (PCM).

Parts You'll Likely Need

• Turbocharger Wastegate Actuator Kit (OEM #K2GZ-9G488-B) — This is the most common fix, addressing a failed electronic actuator, a missing e-clip, or a damaged rod as recommended by Ford TSBs. It includes the actuator, rod, and both clips.
  Trusted brands: Motorcraft
  OEM price range: $90-$150
  Aftermarket price range: $70-$120
• Wastegate Actuator E-Clip — If only the clip is missing, replacing it can solve the problem. However, Ford's service kit is often recommended to ensure the entire assembly is updated and to address potential non-visible rod damage.
  OEM price range: $5-$15
  Aftermarket price range: $1-$5
• Superseded Turbocharger Wastegate Actuator (OEM #P2GZ-9G488-A) — This part number appears to be a newer release for 2023+ models like the Nautilus and Escape with the 2.0L engine. It may supersede K2GZ-9G488-B for some applications. Always verify fitment with a VIN.
  Trusted brands: Motorcraft
  OEM price range: $65-$100

Related Codes That Often Appear With This One

• P0299 — This code indicates a 'Turbo/Supercharger Underboost' condition. It's often triggered alongside P0243 because if the wastegate is stuck open due to a missing clip or failed actuator, the turbo cannot build the required amount of boost.
• P02AB, P25B3, P25B4, P2AB7, P2AB8, P2AB9 — These are all related Ford-specific codes for wastegate position and control circuits. The TSBs from Ford group them together with P0243 as they all point to the same root cause: a faulty wastegate actuator or missing e-clip.

Technical Service Bulletins (TSBs) & Recalls

• SSM 50485: Lack of power with DTCs including P0243 due to an inoperative wastegate actuator, missing e-clip, or non-visible actuator rod damage on 2019-2022 Edge/Nautilus, 2020-2022 Escape/Corsair, and 2021-2022 Bronco Sport.
• SSM 50171: Similar to above, linking lack of power and P0243 to wastegate actuator issues on 2.0L/2.3L EcoBoost engines.
• SSM 49427: Specifically calls out a missing wastegate actuator e-clip as the cause for P0243 and other codes, and notes that a service component (actuator kit) is available, avoiding full turbo replacement.

Platform-Specific Known Issues

• Ford has issued multiple Technical Service Bulletins (TSBs) for the 2019-2022 Edge regarding this issue. TSBs #SSM 50485, #SSM 50171, and #SSM 49427 all point to a lack of power and code P0243 being caused by either a missing wastegate actuator e-clip, an inoperative actuator, or non-visible rod damage.

Mechanic-Grade Diagnostic Values

• Wastegate Actuator/Solenoid Coil Resistance — expected: Commonly 5-30 Ω. Some service manuals specify a tighter range, such as 20 Ω ± 5 Ω.. Failure: A reading of infinite resistance (Open Loop) or near zero resistance (short circuit) indicates a failed solenoid coil.
• Voltage Supply at Actuator Connector — expected: ~11-14 Volts (Battery Voltage) on the power supply pin with Key On, Engine Off.. Failure: No voltage or significantly low voltage indicates a problem with the wiring, fuse, or PCM supply circuit.
• Ground Continuity at Actuator Connector — expected: Near 0 Ω resistance between the ground pin on the harness connector and a known good chassis ground.. Failure: High resistance indicates a poor ground connection, which can cause erratic operation.

Scan Tool Commands That Help

• FORScan or Ford IDS: Output State Control / Actuator Self-Test — This function allows a technician to command the wastegate actuator to cycle through its range of motion while the engine is off. It is used to verify if the actuator is mechanically stuck, slow to respond, or has failed electrically. Observing or listening to this test can confirm if the actuator is moving as commanded by the PCM.

Wiring & Ground Locations

• G100 / G101 — Typically located on the left side of the engine or engine compartment.. These are primary engine grounds. A loose or corroded connection here can affect numerous engine sensors and actuators, including the wastegate actuator circuit.
• G105 — Located in the left front of the engine compartment, often near the battery junction box or cooling fans.. This ground point serves various components in the front of the engine bay. Verifying its integrity is a key step when diagnosing any electrical fault in this area.
• Firewall Ground Stud — On the firewall on the driver's side, often to the right of the battery.. This is a main chassis grounding point for many under-hood components and is a critical point to check for corrosion or looseness.

Real Owner Repair Stories

• Ford Edge Forum (2020 Ford Edge SEL AWD 2.0L EcoBoost) — Wrench light followed by Check Engine Light, significant power loss, cruise control inoperative, codes P0243 and P0299.
  ✅ What actually fixed it The dealership replaced the wastegate solenoid/actuator assembly under the powertrain warranty. The owner confirmed seeing the new, shiny part under the car after the repair.
• Bronco6G Forum (2023 Ford Bronco 2.3L EcoBoost (23,000 miles)) — Check Engine Light with codes P0243 and P2AB9. A loud servo-like noise was noticeable from the actuator during engine startup and shutdown.
  ❌ Tried (didn't work) Clearing codes with FORScan (they returned the next day).
  ✅ What actually fixed it The owner replaced the electronic wastegate actuator (part number LB5Z-9G488-B for this model). This fixed the codes and the loud noise, and restored proper boost performance. The owner noted they did not have to replace the actuator rod, only the electronic motor portion.

OEM Part Supersession History

• N/A → K2GZ-9G488-B — This is the service kit released by Ford to address the actuator and e-clip issue without requiring full turbocharger replacement.
  Heads up: This kit is specified for Edge/Nautilus/Escape/Corsair. The Explorer/Ranger uses a different kit (LB5Z-9G488-B). Always verify the part number with the vehicle's VIN.