P0238
Turbocharger Boost Sensor A Circuit High
System: Air/Fuel
Severity: medium
What does P0238 mean?
The DTC P0238 (Turbocharger Boost Sensor A Circuit High) is a fault code stored by the ECU when it detects a MAP sensor high condition in the air/fuel subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0238
- Faulty MAP sensor
- Short to power in MAP wiring
- Connector corrosion
How to fix P0238
Replace MAP sensor and inspect harness. DaVinci can recalibrate boost limits if MAP signal is noisy after repair.
Tuning approach with DaVinci Deluxe · Cloud Edition
For P0238, DaVinci Deluxe · Cloud Edition offers the following ECU map adjustments and software solutions:
- MAP scaling adjust
- Boost limit recalibrate
Need to fix P0238 on your ECU?
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