Testing spark plug wires and diagnosing bad spark plug wires. Learn how to test spark plug wires with a multimeter. If your car is stalling, idling poorly, hesitating, getting bad fuel economy, misfiring, or you have a check engine light, you should check your spark plug wires. This will also show you How To Fix P0300 random misfire codes in your car. There are 3 main tests I go over 1. Water spray at night (look for sparks) 2. Visual inspection (cracks, burns, etc) 3. Using a multimeter (ohm meter resistance test) How to gap a spark plug: https://www.youtube.com/watch?v=IuW3svdqKZM How to replace spark plug wires: https://www.youtube.com/watch?v=vaRl2aWPAcU BMW Spark Plug Replacement: https://www.youtube.com/watch?v=gF9Bo4DDkE4 Spark Plug Wire Looms out of Zip Ties: https://www.youtube.com/watch?v=xWO1Oes7oJw *If the video was helpful, remember to give it a "thumbs up" and consider subscribing. New videos every Thursday* -Website: https://www.ChrisFixed.com/ -Facebook: https://www.facebook.com/chrisfix8 -Twitter: https://twitter.com/ChrisFixed -Instagram: https://instagram.com/chrisfixit -Subscribe Here: null -YouTube Channel: null Disclaimer: Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.