5 Causes of Lost Ignition in Fuel Injection Cars

The car's engine requires a series of combustion processes, starting from the starter to the car running, the ignition plays an important role. But what if the spark plug does not spark? There are several causes of lost ignition in fuel-injected cars.

1. Power Transistor Unit is Damaged

It can be said that the components and circuits of the ignition system in fuel-injected cars seem complicated. There are many devices that can cause ignition loss, one of which is the power transistor unit.

Its role is very important because it must regulate the timing of the on-off electric current in the primary coil. This part is located in the ignition coil component.

If even one of them does not function perfectly, then the instructions from the ECU or engine control unit will not be conveyed to the ignition, causing the spark plug not to spark and unable to convert it into heat energy for combustion.

Damage to this transistor can occur if the wire is broken, the transistor is swollen, or there are broken pins.

2. Ignition Coil Does Not Function Normally

This cause of lost ignition in fuel-injected cars is still related to the Power Transistor Unit. If there are no issues with the transistor, then check the next component in the circuit, namely the ignition coil. This problem will not occur in all installed coils, but only in one that is affected.

3. Broken Ignition Cable and Socket

If the condition of the transistor and ignition coil is still good, then continue the inspection towards the cables and sockets.

The ignition circuit will not function if there is damage to just one component. Here, you can check if the connected connector path is damaged.

This issue generally occurs in the camshaft and crankshaft sockets, which can be detected with a wiring diagram tool. The cause of lost ignition in fuel-injected cars may seem trivial, but it can be quite difficult to repair.

Especially if you are not familiar with automotive systems, it is advisable to go to a trusted service place for detection and repair.

4. Angle Sensor Does Not Detect the Piston

Actually, the one responsible for detecting the cylinder piston is the Engine Control Unit (ECU). However, the ECU itself cannot function optimally without the help of the angle sensor that reads the rotation of the crankshaft.

With accurate readings, the ECU will be able to detect which cylinder piston produces the spark to initiate combustion or ignition.

5. Damage in the Sensing Blade Component

Similar to the angle sensor, the sensing blade device also has a crucial role in assisting the ECU. Its function is related to the crankshaft sensor that can read data and motion components.

If damaged, the response from the ECU will be limited and cause the spark plug not to produce a spark, which is the cause of lost ignition in fuel-injected cars. A car unit cannot work perfectly if there is a malfunction. This is proven by the car's ignition system.

When a malfunction occurs, the car cannot start properly. You can detect this issue by checking the power transistor, ignition coil, ignition cables, angle sensor, and sensing blade.

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