p0301
Moderate
Opel · Sedans & Hatchbacks
Cylinder 1 Misfire Detected
Quick Answer
Error code P0301 on your Opel Sedans & Hatchbacks means: Cylinder 1 Misfire Detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check spark plug condition and gap
2
Test ignition coil resistance and output
3
Perform cylinder compression test
4
Check fuel injector operation
5
Inspect for vacuum leaks
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Spark plug
Ignition coil
Fuel injector
Compression test kit
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