P02BB

Cylinder 9 - Fuel Trim at Min 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
Misfire in cylinder 9

Causes

Air leak in the intake tract
Dirty or faulty fuel injectors
Low fuel pressure
Malfunction of the oxygen sensor (lambda probe)
Cylinder 9 injector wiring harness problems

How to Fix

Check the tightness of the intake tract
Check the condition of the fuel injectors
Measure fuel pressure
Check the operation of the oxygen sensor
Inspect the cylinder 9 injector wiring harness

Related codes

P0171 P0172 P0309