P230B

Cylinder 2 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Reduced engine power
Dips during acceleration
Check Engine Light Illuminates

Causes

Dirty or faulty fuel injectors
Vacuum leaks in cylinder 2
Problems with the ignition system (plugs, coils)
Oxygen sensor malfunction
Engine mechanical problems (compression)

How to Fix

Check the condition of the fuel injectors, clean or replace if necessary.
Check the tightness of the intake tract on cylinder 2
Check the condition of the spark plugs and coils
Check oxygen sensor readings
Measure compression in cylinder 2

Related codes

P230A P230C P0302