A new light on your dashboard? You don’t figure out why it doesn’t shut off… It’s typical, a car is complicated and there are various causes why a light might occur. In cases where your glow plug light comes on while driving your Infiniti M, it may suggest several issues. On this page, we will do anything we can to help you see things more clearly. First, we will see how the preheating light on your Infiniti M works, and then the different motives it lights up when you are driving

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What is the role of my Infiniti M glow plug light?

The main intent of the engine glow plug light, which is in most cases represented by a yellow coil, is to make sure that your glow plugs are working correctly. In fact, it must light up when you switch on your Infiniti M 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 supposed to stay or come on while driving with your automobile. Nevertheless, if it comes on while driving, it may suggest multiple troubles, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my Infiniti M?

A glow light that comes on while driving on your Infiniti M or at any other time other than when the engine is started is meant to inform you to a problem other than your spark plugs, we will look at this now. In any case, connecting your vehicle to the diagnostic tool will allow you to precisely translate the explanation for the light up of your glow light.

My Infiniti M glow light comes on and I’m going through a loss of power

The first possibility is that you perceive that your glow plug light comes on while driving your Infiniti M and that you also experience a loss of power. In such a case, several trouble can describe its presence. Here is a list of the most important causes:

  • Problem of EGR valve, in reality, if you suffer a loss of power, it is possible that your EGR valve is clogged, in this case, it is expected that your preheat light comes on while driving on Infiniti M because it is one of the problem of which it is meant to warn you. Have the status of your valve tested
  • Issue related to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can cause turbo boost and a perturbation in the performance of the turbo.
  • Issue relevant to the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disrupt its proper function.
  • Finally, the last trouble that could lead to a glow indicator light on your Infiniti M coupled with a loss of power, is that your fuel filter is too dirty, you should get 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 Infiniti M

To conclude, we’ll give you the motives for a glow plug light that comes on on your Infiniti M without you feeling any difference in power or automobile behaviour. In most cases, 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 trouble.
  • You have a false contact somewhere in your electrical circuit, test out the other options first because it is not easy to find it alone, we encourage you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any further questions about the Infiniti M, do not hesitate to consult our Infiniti M category.