P0242Chevrolet EquinoxYears: 1996 - 2026
Turbocharger Boost Sensor B Circuit High
Reviewed by ASE Certified Technician
What does this mean?
Code P0242 indicates a problem with the turbocharger/supercharger boost pressure sensor B circuit.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Chevrolet Equinox models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
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Common Causes
Stuck or faulty turbo wastegate
Faulty turbocharger boost control actuator
Faulty MAP (Manifold Absolute Pressure) sensor
Damaged, chafed, or broken wiring harness
Vacuum leak in intake system
Symptoms to Watch For
- Check Engine Light is illuminated
- Excessive turbo lag or no boost
- Significant loss of engine power
- Vehicle enters reduced power / limp mode
- Poor acceleration or sluggish response