P230E

Cylinder 5 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

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

Causes

Dirty or faulty fuel injectors
Vacuum leaks in cylinder 5
Problems with the ignition system in cylinder 5
Oxygen sensor malfunction
Worn spark plug in cylinder 5

How to Fix

Check the condition of the fuel injectors, especially cylinder 5
Investigate possible air leaks in the intake tract
Check the spark plugs and ignition coil of cylinder 5
Diagnose the operation of oxygen sensors
Test compression in cylinder 5

Related codes

P230F P230D P0171