P0243 on Ford
Turbocharger/Supercharger Wastegate Solenoid "A" Malfunction
P0243 on Ford vehicles indicates turbocharger/supercharger wastegate solenoid "a" malfunction. Au7o has documented this code across 1 Ford model — most commonly on F-150. This code indicates a general fault with turbocharger/supercharger wastegate solenoid "A," which the engine control module uses to manage boost pressure. The computer has detected the solenoid or its circuit is not responding correctly (open, shorted, or out of expected operating range). Because it governs boost, a fault can lead to overboost or underboost, reduced power, or a limp mode. Typical repair costs on Ford range from $1,800 to $5,000, depending on the specific model and root cause.
Common Causes of P0243
- •Failed or sticking wastegate solenoid
- •Open or shorted wiring in the solenoid circuit
- •Corroded or damaged electrical connector
- •Mechanical wastegate sticking or binding
- •Vacuum/boost hose leaks or blockage
- •Faulty ECM/PCM solenoid driver (rare)
P0243 on Ford by Model
Ford F-150(1 issue)
- 3.5L EcoBoost Turbocharger Wastegate Failure — Stuck Wastegate / Reduced Engine Power2011-2024
The wastegate on the 3.5L EcoBoost turbochargers fails, either sticking (carbon/corrosion binding the valve and actuator arm) on early vacuum-operated designs or through electronic actuator/position-sensor faults on 2015-and-newer electric-actuator turbos. A stuck-closed wastegate causes overboost (P0234) and a metallic rattle, while a stuck-open wastegate or sensor/actuator faults cause underboost (P0299) and trip the powertrain into reduced-power limp mode. Because Ford does not sell the electronic wastegate actuator as a separate service part on later trucks, the accepted dealer repair is replacement of the entire affected turbocharger assembly, making it an expensive failure. Ford also issued TSB guidance (e.g., wastegate-arm rattle spring kits on 2017 3.5L) for related linkage slack.
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What does P0243 mean on Ford?▼
P0243 stands for "Turbocharger/Supercharger Wastegate Solenoid "A" Malfunction." This code indicates a general fault with turbocharger/supercharger wastegate solenoid "A," which the engine control module uses to manage boost pressure. The computer has detected the solenoid or its circuit is not responding correctly (open, shorted, or out of expected operating range). Because it governs boost, a fault can lead to overboost or underboost, reduced power, or a limp mode. On Ford specifically, this code is documented across 1 model.
What causes P0243 on Ford vehicles?▼
Common causes on Ford: Failed or sticking wastegate solenoid, Open or shorted wiring in the solenoid circuit, Corroded or damaged electrical connector, Mechanical wastegate sticking or binding, Vacuum/boost hose leaks or blockage. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0243 on a Ford?▼
Repair costs on Ford range from $1,800 to $5,000, depending on the specific model and root cause.
Which Ford models have P0243 documented?▼
Au7o has documented P0243 on 1 Ford model: F-150.