A new warning light on your dashboard? You don’t figure out why it doesn’t shut off… It’s typical, a car is complex and there are many reasons why a light could occur. If it turns out your glow plug light comes on while driving your Fiat Idea, it may signal different issues. In the following paragraphs, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Fiat Idea works, and then the different reasons it lights up when you are driving

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What is the purpose of my Fiat Idea glow plug light?

The primary intent of the engine glow plug light, which is most of the time represented by a yellow coil, is to assure that your glow plugs are working properly. In reality, it must light up when you switch on your Fiat Idea to tell you that they are heating the intake air in your cylinders and must go out after a few moments when the engine is running. This preheat light is therefore not expected to stay or come on while driving with your vehicle. But, if it comes on while driving, it may indicate different failures, we will try to detail the most important ones.

What to do if the glow plug light comes on while driving on my Fiat Idea?

A glow light that comes on while driving on your Fiat Idea or at any other time other than when the engine is started is intended to inform you to a fault other than your spark plugs, we will check out this now. In any case, a switch to the diagnostic tool will allow you to carefully interpret the cause for the light up of your glow light.

My Fiat Idea glow light comes on and I’m encountering a loss of power

The first probability is that you notice that your glow plug light comes on while driving your Fiat Idea and that you also experience a loss of power. In this instance, different problems can describe its presence. Here is a list of the most important reasons:

  • Problem of EGR valve, in reality, if you undergo a loss of power, it is possible that your EGR valve is blocked, in this case, it is expected that your preheat light comes on while driving on Fiat Idea because it is one of the problem of which it is designed to warn you. Have the status of your valve looked at
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can lead to turbo boost and a perturbation in the operation of the turbo.
  • Trouble relevant to the injection, either an injector that has seized up or the injection pump that is malfunctioned by filings or other possible foreign bodies that disturb its proper function.
  • Finally, the last issue that could lead to a glow indicator light on your Fiat Idea coupled with a loss of power, is that your fuel filter is too dirty, you should come to feel jerks because of a bad fuel flow in the engine.

My glow plug light comes on or is flashing but no difference on the performance of my Fiat Idea

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Fiat Idea without you feeling any difference in power or vehicle behaviour. Ordinarily, this is an electronic fault:

  • Glow plug relays or fuses to be changed, test and replace if necessary.
  • A contactor/potentiometer on one of your pedals (brake, accelerator or clutch) has failed, often a simple de-seizure will be enough to resolve the issue.
  • You have a false contact somewhere in your electrical circuit, test the other alternatives first because it is not easy to find it alone, we advise you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • If you wish more tutorials on the Fiat Idea, go to our Fiat Idea category.