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P0243 is a diagnostic trouble code (DTC) for "Turbocharger Wastegate Solenoid A Malfunction". 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.
Turbocharger Wastegate Solenoid A Malfunction
P0243 is a generic OBD-II code indicating that the Engine Control Module (ECM) detected the turbocharger wastegate solenoid has an open or short circuit.
The turbocharger wastegate solenoid is shorted or has an open in the solenoid.
The solenoid connector is corroded, causing an open circuit.
The wiring in the solenoid circuit is shorted to power or ground, or open circuit from a broken wire or connector.
The Check Engine Light is illuminated and the code is set in memory.
The engine turbo boost may not be able to be controlled properly and may underboost the engine.
The engine may lack power during acceleration if the wastegate solenoid is failing to control the correct amount of boost pressure.
Follow these simple guidelines to prevent misdiagnosis:
The turbo boost pressure in the intake is controlled with the wastegate and wastegate solenoid on most vehicles with a turbocharger. If the solenoid is malfunctioning, then the ECM cannot enable and control the turbo boost, often resulting in a lack of power.
Code P0243 is triggered by the ECM indicating a malfunction condition in the wastegate solenoid circuit; the ECM sees an open or short in the circuit. The most common failure is the wastegate solenoid itself.
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