Is it safe to drive with a P0302 code?

Severity is high. Address P0302 sooner rather than later — driving with an active check engine light can worsen the problem or void emissions warranties.

How much does it cost to fix P0302?

Repair costs for P0302 typically range from $40 to $800 in the US, depending on the underlying cause. The most common fix is: Failed coil on cyl 2.

What are the symptoms of P0302?

CEL (often flashing). Rough idle. Loss of power.

Check Engine Code

P0302

Cylinder 2 Misfire Detected

Severity: high DIY difficulty: 2/5 Typical cost: $40–$800

What P0302 means

Cylinder #2 specifically is missing combustion events. Diagnose by swapping its ignition coil with a known-good one — if the misfire follows the coil, you've found the culprit.

Symptoms

CEL (often flashing)
Rough idle
Loss of power

Likely causes (most common first)

Failed coil on cyl 2
Fouled spark plug
Clogged injector
Low compression

Can I keep driving?

High — risk of damage if ignored

Typical repair cost

DIY fixes can start near $40 (parts only). Shop repairs for P0302 typically run up to $800 depending on the underlying cause and vehicle. Start with the most common cause — Failed coil on cyl 2 — before throwing parts at it.

Related codes

P0300 P0301 P0303 P0304

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