Vauxhall astra active 1.6 twinport - Misfire cylinder 1 - astraadz
My check engine light came on and started flashing when I went over 30 mph. I checked the fault code and it was P0301 (misfire cylinder 1) I changed the spark plugs but no joy. So I took the coil pack from my friends astra (same model) and the check engine light was still on but it no longer flashes when I speed up and it sounds a lot healthier and the car wasn't vibrating as much. But since the engine light is still on and the fault code is still showing is there another problem or is it a case of it needing reset.

Many thanks
Vauxhall astra active 1.6 twinport - Misfire cylinder 1 - Avant

Moved to Technical.