P0242
Turbocharger/Supercharger Boost Sensor B Circuit High
P0242 is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Boost Sensor B Circuit High. Common causes: boost sensor b malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Reduced engine power
- Unstable idling
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Boost sensor B malfunction
- Open or short circuit in wiring harness
- Problems with sensor connectors
- Mechanical problems with the turbo/supercharger system
- ECU malfunction
How to Fix
- Check the integrity of the wiring harness and sensor connectors
- Check resistance and voltage of boost sensor B
- Replace boost sensor B if necessary
- Check the mechanical part of the charging system
- Reset the error and take a test drive
Related codes
Error P0242 by Vehicle Brand
FAQ
What does the P0242 code mean?
P0242 is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Boost Sensor B Circuit High
What causes a P0242 error code?
The most common causes of P0242 include: Boost sensor B malfunction; Open or short circuit in wiring harness; Problems with sensor connectors; Mechanical problems with the turbo/supercharger system.
How do I fix a P0242 diagnostic trouble code?
To fix P0242: Check the integrity of the wiring harness and sensor connectors. Check resistance and voltage of boost sensor B. Replace boost sensor B if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0242?
Limited driving only, diagnose soon
How much does it cost to fix P0242?
The estimated repair cost for P0242 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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