P03C6

Cylinder 5 Combustion Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Uneven engine operation
Power reduction
Increased fuel consumption
Vibrations at idle

Causes

Spark plug fault
Problems with the ignition coil
Dirty or faulty fuel injectors
Low cylinder compression
Problems with the air intake system
Malfunction of sensors (mass air flow sensor, oxygen sensor)

How to Fix

Check the condition of the spark plug in cylinder 5
Test the ignition coil
Check the operation of the fuel injector
Measure the compression in the cylinder
Check the tightness of the intake tract
Scan sensors for errors

Related codes

P0305 P0171 P0172 P0300