RATÉS MOTEUR ! Comment TESTER une BOBINE D'ALLUMAGE ? (Perte de puissance, Surconsommation, voyant)

The engine dashboard light is on on my car. The engine vibrates and has a lack of power. The diagnostic tool show the trouble code P0304. It means that there are misfire on the cylinder number 4. After having tested the charging circuit, I test the ignition coil on the defective cylinder with an ignition coil tester. I who you how this tool works. Since the ignition works well, I test the spark plug with a spark plug tester. The spark plug doesn't work. So I replace it and check that the engine works well. The dashboard light becomes off and there isn't trouble code anymore. 0:00 Intro and preliminary tests 1:16 Ignition coil test 4:35 Sparkplug test 5:49 Spark plug refitting and conlusion If you like this video, you can add a comment, share it, add a thumb up or consider subscribe. This video isn't sponsored. This video has been created for practical, educational, and sharing purposes. It neither constitutes nor replaces a genuine specialized technical manual. EnjoyWheels provides no warranties of any kind and disclaims all liability for the information contained in the videos. Under no circumstances can the author be held accountable by viewers for any adverse effects resulting from the use of the information presented in the content. EnjoyWheels recommends wearing personal safety equipment when carrying out tasks similar to those shown in the videos on this channel. If you are uncertain about the potential dangers of an operation, its consequences, or your own ability to perform it, seek assistance from a professional.