What causes a car igniter to have no power?
2 Answers
Car igniter loses power due to poor contact. More information about car igniter failures is as follows: 1. Sudden engine shutdown when using the igniter: This is usually caused by loose wiring connections or damaged wires grounding. 2. Unstable engine shutdown after prolonged driving: Typically caused by high-speed misfiring of the igniter chip, requiring igniter replacement. 3. Severe engine vibration: If the car runs normally before igniter installation but shows unstable idle speed and severe engine vibration when accelerating after installation and debugging, sometimes accompanied by backfiring from the exhaust pipe, and no improvement after ignition timing adjustment, it's usually due to reversed connection of the sensor's red and black wires.
I've been driving for years and have encountered the cigarette lighter losing power several times, all due to blown fuses. That little strip in the fuse box under the dashboard is prone to overload, overheating, and breaking, especially when plugging in a phone charger or high-power power bank for too long. To check, you can open the fuse box cover, locate the fuse marked with the cigarette lighter icon, pull it out to see if it's blown, and try replacing it with a new fuse of the same amperage. Don't replace it with one that's too large, as it could cause a short circuit and be more dangerous. To prevent this, avoid connecting high-power devices regularly. If replacing the fuse doesn't work, the cigarette lighter plug might be rusty or worn out and deformed—cleaning the contact points might restore it. Loose wiring connections can also cause power loss, so it's best to have the electrical system checked during regular maintenance for safety.
