P025F

Symptoms

• Reduced engine power
• Rough idling
• Dips during acceleration
• Check Engine Light Illuminates
• Increased fuel consumption

Causes

• Boost pressure sensor B malfunction
• Open or shorted sensor wiring harness
• Poor contact in the sensor connector
• Air leak in the charging system
• Mechanical failure of turbocharger/supercharger

How to Fix

1. Visually inspect the sensor and wiring harness for damage
2. Checking the contacts in the sensor connector for oxidation or corrosion
3. Measuring sensor resistance and voltage according to specifications
4. Checking the system for air leaks
5. Replacing a faulty sensor if necessary
6. Clean or replace the turbocharger/supercharger if mechanical problems are detected

Related codes

Error P025F by Vehicle Brand