MasterTuning Fault code dictionary (DTC)

P0302 — Cylinder 2 Misfire Detected

Severity: Serious Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningThe engine computer has detected that the second cylinder is not firing properly. This means the fuel inside that specific cylinder is not burning completely, causing the engine to run rough and lose power.
FamilyPowertrain (P)

Typical symptoms

The engine shakes or vibrates noticeably, especially when idling.
The car feels sluggish and lacks power when you press the gas pedal.
The check engine light is flashing or staying on.

Common causes

Worn out or fouled spark plug on cylinder 2.
Defective ignition coil pack for cylinder 2.
Faulty fuel injector on cylinder 2.
Low compression or internal engine wear in cylinder 2.

What to do

Have a mechanic check the spark plug and ignition coil on cylinder 2 first, as these are the most common culprits. It is best not to drive the car for long distances with a flashing check engine light to prevent damaging the exhaust system.

Frequently asked questions

What does code P0302 mean?

Cylinder 2 Misfire Detected. The engine computer has detected that the second cylinder is not firing properly. This means the fuel inside that specific cylinder is not burning completely, causing the engine to run rough and lose power.

Can I keep driving with code P0302 active?

With caution: limp mode possible, have it checked soon

Common causes — P0302

Worn out or fouled spark plug on cylinder 2. Defective ignition coil pack for cylinder 2. Faulty fuel injector on cylinder 2. Low compression or internal engine wear in cylinder 2.

How do you fix code P0302?

Have a mechanic check the spark plug and ignition coil on cylinder 2 first, as these are the most common culprits. It is best not to drive the car for long distances with a flashing check engine light to prevent damaging the exhaust system.

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