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 multiple factors why a light might come on. If your glow plug light comes on while driving your Infiniti QX80, it might reveal some things. In this article, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Infiniti QX80 functions, and then the different motives it lights up when you are driving

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What is the goal of my Infiniti QX80 glow plug light?

The main purpose of the engine glow plug light, which is generally symbolized by a yellow coil, is to make sure that your glow plugs are working properly. Indeed, it must light up when you switch on your Infiniti QX80 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 motor vehicle. But, if it turns on while driving, it may suggest multiple troubles, we will try to detail the most important ones.

What to do if the glow plug light comes on while driving on my Infiniti QX80?

A glow light that comes on while driving on your Infiniti QX80 or at any other time other than when the engine is started is intended to warn you to a problem other than your spark plugs, we will check out this now. Whatever the case, a switch to the diagnostic tool will allow you to precisely interpret the cause for the light up of your glow light.

My Infiniti QX80 glow light comes on and I’m encountering a loss of power

The first situation is that you identify that your glow plug light comes on while driving your Infiniti QX80 and that you also experience a loss of power. In such a case, some concerns can demonstrate its lightning. Here is a list of the most important factors:

  • Problem of EGR valve, in reality, if you go through 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 Infiniti QX80 because it is one of the issue of which it is supposed to alert you. Have the status of your valve tested
  • Issue associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can result in 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 malfunctioned by filings or other possible foreign bodies that disturb its proper function.
  • Finally, the last trouble that could lead to a glow indicator light on your Infiniti QX80 coupled with a loss of power, is that your fuel filter is too dirty, you should experience 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 QX80

To conclude, we’ll give you the motives for a glow plug light that comes on on your Infiniti QX80 without you feeling any difference in power or motor vehicle behaviour. Ordinarily, 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 the other alternatives first because it is not easy to find it alone, we suggest you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you have any additional questions about the Infiniti QX80, do not hesitate to consult our Infiniti QX80 category.