P2BF2

Fuel Control System B Too Lean Bank 2

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Power Loss
Increased fuel consumption
Check Engine Light Is On
Dips during acceleration

Causes

Air leak in the intake tract
Malfunction of oxygen sensors
Problems with fuel injectors
Weak fuel pump
EGR system malfunction

How to Fix

Check the tightness of the intake tract
Check the operation of oxygen sensors
Clean or replace fuel injectors
Check fuel pressure and pump operation
Diagnose the EGR system

Related codes

P0172 P0174 P2187