P219B

Bank 2 Air-Fuel Ratio Imbalance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Power Loss
Check Engine Light Is On
Possible misfires

Causes

Dirty or faulty injectors
Air leak through vacuum hoses
Malfunction of oxygen sensors
Problems with the fuel pump
Dirty or faulty air flow sensor

How to Fix

Check the tightness of the intake tract
Check the condition and operation of the injectors
Diagnose oxygen sensors
Check fuel pressure
Clean or replace the mass air flow sensor

Related codes

P219A P2177 P2179