Coil packs serve as vital components in modern ignition systems, converting low battery voltage into the high-voltage energy required to ignite the air-fuel mixture in an engine’s cylinders. As ...

We may receive a commission on purchases made from links. Is your car misfiring, having trouble starting, or idling rough? Are you wondering if the problem is one of your coil packs? If you're like ...

Corolla coil pack problems... I keep having a problem with my O2 sensor in my Corolla 1.4 petrol. I have had all 4 coil packs replaced but after a few weeks the o2 sensor light comes on and the engine ...