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What can be the main causes of the engine warning light being on

Model: (Various brands) Various
Part: Warning light – error code

Video tutorial

The video illustrates some very common causes: the first is the exhaust system in general. So the lambda probe or faulty oxygen sensor, the inefficient catalyst or FAP, the clogged or faulty EGR valve.

Follow fuel or combustion problems, such as defective injectors or worn ignition coils or spark plugs. But there may also be problems with the electrical system such as dirty or faulty MAP or MAF sensors.

And what about really serious mechanical problems like a slipping timing belt? Even the lack of just one tooth can cause the warning light to come on and serious operational problems; and problems with the vapor recirculation system can trigger the warning light.

If it is yellow, it allows us to reach a mechanic for a diagnosis.

If it is red, we must stop immediately and call a tow truck. Continuing could cause serious damage to the engine.


Posted on 4 October 2025 by ScegliAuto


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How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

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