What does code P0238 mean?
High signal detected from boost sensor A
OBD-II Code
P0238 — Turbocharger Boost Sensor A Circuit High Input
High signal detected from boost sensor A
Common symptoms
- Limp mode activation
- overboost condition
Possible causes
- Signal shorted to voltage
- faulty sensor
- malfunctioning boost solenoid
Initial recommendation
Inspect boost solenoid, wiring and sensor operation.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0238 with your vehicle's actual symptoms for more complete diagnostic guidance.
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