P2BEF

Symptoms

• Increased fuel consumption
• Reduced engine power
• Black smoke from the exhaust pipe
• Unstable engine idling
• Smell of gasoline from the exhaust pipe

Causes

• Oxygen sensor malfunction (bank 2, sensor 1)
• Dirty or faulty fuel injectors
• Problems with the mass air flow sensor (MAF)
• Leak in the fuel supply system
• Malfunction of the absolute pressure sensor (DBP)

How to Fix

1. Check and, if necessary, replace the oxygen sensor of bank 2
2. Clean or replace fuel injectors
3. Check the operation of the mass air flow sensor and replace if necessary
4. Check the fuel supply system for leaks
5. Check and replace DBP if necessary

Related codes

Error P2BEF by Vehicle Brand