Common signs include ignition of the check-engine warning light,engine misses, hard idle, a power failure and the car not starting.
Induction coils are an electronic engine management component, part of the engine starting system. The induction coil works like a coil that converts the 12 V of the car battery into a few thousand volts needed to ignite the spark plugs and the mixture of air and fuel.
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Some starting systems use only one induction coil to give spark to all four cylinders , but the newest models use one coil for each cylinder.
As the induction coil is the component responsible for generating the spark to the engine, any failure of it can lead to problems with engine performance. Usually, a faulty induction coil will have some signs that will alert the driver of a potential problem.
Engine failure, hard idling and loss of power
One of the most common signs associated with a faulty induction coil concerns engine performance.
As the induction coil is among the vital components of the ignition system, a problem with it can compromise the spark, which can lead to misfires, hard idling, a loss of power and acceleration and an increase in fuel consumption. In some cases, the engine may stall.
The engine warning light comes on
Another sign of a potential problem with the induction coil is the appearance of the check-engine warning light. Defective coils can lead to problems with engine performance, especially failures that will notify the computer and turn on the engine light.
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This warning light also pops up if the computer detects a problem with the induction coil signal or circuit, such as when a coil burns or short-circuits.
The engine warning light can appear because of a wide range of problems, so it is recommended to scan your computer for OBD2 error codes.
The car does not start
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A faulty induction coil can also lead to engine failure. For cars that use a single coil as a spark source for all cylinders, a defective coil will affect the operation of the entire engine. If the coil does not work at all, it will leave the engine without a spark, which will lead to failure to start the engine.
Induction coil problems are usually easy to detect because they produce signs that will be easily noticed by the driver. If you suspect that the induction coil is defective, seek the help of a qualified mechanic to check and possibly replace it
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