When is an ignition coil needs to be replaced?
When is an ignition coil needs to be replaced? If the trouble code changes from P0302 to P0303 (cylinder 3 misfire), the ignition coil that was originally at the cylinder number 2 is bad. Ignition coils are also recommended to be replaced if they show cracks, traces of arcing or other damage that may cause it to short out. Where is the ignition coil located on a car? The spark ignites the air/fuel mixture in the engine cylinders. Most of the modern cars have one ignition coil per cylinder. Often, an ignition coil is installed right over the spark plug,...