MasterTuning Fault code dictionary (DTC)

P0304 — Cilindri 4 Misfire Detected

Severity: Serious Can you drive? With caution: limp mode possible, have it checked soon Produttore: Tutti makes (OBD-II standard)
MeaningThe Motore control unit has detected irregular combustion oppure a Completato lack di firing in Cilindri number four. This means that the air and fuel mixture in that specific cylinder is not burning properly, causing the engine a run rough.
FamilyPowertrain (P)

Typical symptoms

The Motore feels shaky oppure vibrates noticeably alle idle
The Macchina hesitates oppure jerks quando ti press the gas pedal
The check Motore light is flashing oppure stays on solid
Noticeable drop in Motore Potenza

Common causes

Worn out oppure fouled spark plug in Cilindri four
Defective ignition coil pack oppure plug wire
Fuel injector malfunction supplying Cilindri four
Low compression oppure internal mechanical Motore issue

What a do

You should have this checked soon, especially if the check Motore light is flashing, because unburned fuel can damage the exhaust catalyst. Ask Il tuo mechanic a start by inspecting the spark plug and ignition coil on Cilindri four.

Domande Frequenti

What does code P0304 mean?

Cilindri 4 Misfire Detected. The engine control unit has detected irregular combustion or a Completato lack of firing in cylinder number four. This means that the air and fuel mixture in that specific cylinder is not burning properly, causing the engine to run rough.

Can I keep driving with code P0304 Attivo?

With caution: limp mode possible, have it checked soon

Common causes — P0304

Worn out oppure fouled spark plug in Cilindri four Defective ignition coil pack or plug wire Fuel injector malfunction supplying cylinder four Low compression or internal mechanical Motore issue

How do you fix code P0304?

You should have this checked soon, especially if the check Motore light is flashing, because unburned fuel can damage the exhaust catalyst. Ask Il tuo mechanic a start by inspecting the spark plug and ignition coil on Cilindri four.

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