P02B6

Cylinder 8 - Fuel Trim at Max Limit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Misfires

Causes

Dirty or faulty injector of cylinder 8
Air leak in intake manifold
Oxygen sensor malfunction
Problems with the fuel pump or pressure regulator
Dirty or damaged injector wiring harness

How to Fix

Check the injector of cylinder 8 for contamination or malfunction
Check the tightness of the intake tract
Check the operation of oxygen sensors
Check fuel pressure and condition of the fuel pump
Inspect the injector wiring harness for damage.

Related codes

P0171 P0172 P0308