Quick Vauxhall Opel Zafira b coil test for a P0303

Car was missing and spluttering, it threw up an engine light and there was a code P0303. Here’s a quick test, before replacing random parts.

[@alanryderb]

It was cylinder 3 that went on mine as well. It had a misfire when accelerating in third from low speed. I didnt know about this test. 👍

[@drivewaydiyer6504]

Quite a simple basic test, but it helped here. I never thought this was the best design as they’re not cheap when they fail.