A new warning light on your dashboard? You don’t find out why it doesn’t turn off… It’s typical, a vehicle is complicated and there are various causes why a light could come on. If your glow plug light comes on while driving your Fiat Punto Evo, it might indicate different concerns. In the following paragraphs, we will do anything we can to support you see things more clearly. First, we will see how the preheating light on your Fiat Punto Evo functions, and then the different explanations it lights up when you are driving

glow-plug-light-fiat-punto-evo

What is the purpose of my Fiat Punto Evo glow plug light?

The main goal of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to guarantee that your glow plugs are working effectively. Indeed, it must light up when you switch on your Fiat Punto Evo to tell you that they are heating the intake air in your cylinders and must go out after a few minutes when the engine is running. This preheat light is therefore not expected to stay or come on while driving with your vehicle. Nevertheless, if it comes on while driving, it may reveal several failures, we will try to detail the main ones.

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

A glow light that comes on while driving on your Fiat Punto Evo or at any other time other than when the engine is started is intended to alert you to a problem other than your spark plugs, we will take a look at this right now. In any case, plug in your car to the diagnostic tool will allow you to carefully interpret the explanation for the light up of your glow light.

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

The first probability is that you perceive that your glow plug light comes on while driving your Fiat Punto Evo and that you also experience a loss of power. In this case, different problems can demonstrate its presence. Here is a list of the main causes:

  • Problem of EGR valve, indeed, if you suffer a loss of power, it is possible that your EGR valve is blocked, in such a case, it is obvious that your preheat light comes on while driving on Fiat Punto Evo because it is one of the failures of which it is designed to alert you. Have the status of your valve tested
  • Problem associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about turbo boost and a perturbation in the operation of the turbo.
  • Problem associated with the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that affect its proper function.
  • Finally, the last problem that could lead to a glow indicator light on your Fiat Punto Evo 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 Punto Evo

Finally, we’ll give you the explanations for a glow plug light that comes on on your Fiat Punto Evo without you feeling any difference in power or vehicle behaviour. In general, this is an electronic problem:

  • Glow plug relays or fuses to be replaced, 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 problem.
  • You have a false contact somewhere in your electrical circuit, check the other options first because it is not easy to find it alone, we suggest you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • If perhaps you have any further questions about the Fiat Punto Evo, do not hesitate to consult our Fiat Punto Evo category.