P0105Infiniti Q50Years: 1996 - 2026
Manifold Absolute Pressure (MAP) / Barometric Pressure Circuit Malfunction
Reviewed by ASE Certified Technician
What does this mean?
The MAP sensor measures intake manifold vacuum pressure to help the PCM calculate engine load. Code P0105 indicates a general malfunction in this circuit.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Infiniti Q50 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
Faulty MAP (Manifold Absolute Pressure) sensor
Damaged, chafed, or broken wiring harness
Corroded or loose electrical connector
Vacuum leak in intake system
Symptoms to Watch For
- Check Engine Light is illuminated
- Rough or unstable idle
- Engine stalling or dying unexpectedly
- Poor acceleration or sluggish response
- Decreased fuel economy
- Difficulty starting the engine