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P0246 is a diagnostic trouble code (DTC) for "Turbocharger Wastegate Solenoid High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
This is the universal DTC for Turbocharger Wastegate Solenoid High.
The wastegate in a turbocharged vehicle is part of the system which regulates maximum boost pressure, by opening and closing in order to divert exhaust. This safeguard acts as protection for the turbocharger as well as the engine.
If a vehicle sets this code, it means that the ECM (engine control module) has received a signal indicating that the wastegate solenoid A circuit voltage does not fall within the recommended specifications. Other turbocharger or engine codes may be stored along with P0246.
Causes of a wastegate solenoid circuit malfunction may include:
When there is a wastegate solenoid circuit malfunction, you may notice poor acceleration, abnormal sounds from the turbocharger or pipes, exhaust smoke, and/or poor engine performance. The engine may experience a boost condition while idling, which could cause stalling or rough idling. You may also see other codes that have set, upon scanning the vehicle’s computer, such as other turbocharger codes, knock sensor, or misfire codes. The Malfunction Indicator Lamp (MIL) will likely also illuminate.
This DTC may require the following diagnostic procedures:
Diagnostic errors may include replacing the wastegate solenoid without inspecting the rest of the system, such as the wastegate door and linkage. If the wastegate door is stuck, or connectors or wiring are compromised, replacing the solenoid may only result in continued failure.
In addition, it’s important not to overlook any boost pressure sensor codes that are present along with P0246. If one is present, this should be repaired prior to performing any repairs on the wastegate solenoid A circuit.
While this malfunction does not typically cause catastrophic damage, it could cause the vehicle to continually stall or run poorly. This happens because an error in the solenoid or related components could keep the wastegate door from functioning properly, resulting in a constant boost condition.
Repairs that can solve a faulty wastegate solenoid signal include:
If, after clearing all codes from the vehicle’s computer, the problem cannot be replicated, you may have an intermittent condition. These are particularly challenging because unless the problem is consistent, it can be difficult to trace. Checking for loose connections and bad wiring and repairing as necessary may resolve an intermittent condition.
Each turbocharged system is different, with various solenoids working in sequence to control the wastegate and its related components. The tricky part is that there is no universal pattern of how the solenoids are placed. If you plan to attempt this repair yourself, you’ll want appropriate documentation, including a manufacturer’s wiring diagram for your particular system so you can easily locate circuit A.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.