A new light on your dashboard? You don’t find out why it doesn’t shut off… It’s typical, an auto is complicated and there are various factors why a light may come on. If your glow plug light comes on while driving your Mazda CX 3, it might indicate several things. On this page, we will do everything we can to support you see things more clearly. First, we will find out how the preheating light on your Mazda CX 3 operates, and then the different explanations it lights up when you are driving

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What is the role of my Mazda CX 3 glow plug light?

The primary role 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 reality, it must light up when you switch on your Mazda CX 3 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 car. But, if it turns on while driving, it may indicate different troubles, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my Mazda CX 3?

A glow light that comes on while driving on your Mazda CX 3 or at any other time other than when the engine is started is meant to notify you to a problem other than your spark plugs, we will look at this now. No matter the reason, plug in your car to the diagnostic tool will allow you to accurately interpret the explanation for the light up of your glow light.

My Mazda CX 3 glow light comes on and I’m going through a loss of power

The first situation is that you recognize that your glow plug light comes on while driving your Mazda CX 3 and that you also knowledge a loss of power. In this case, several concerns can describe its lightning. Here is a list of the most important factors:

  • Trouble of EGR valve, in fact, if you suffer a loss of power, it is possible that your EGR valve is clogged, in this case, it is logical that your preheat light comes on while driving on Mazda CX 3 because it is one of the issue of which it is designed to alert you. Have the status of your valve examined
  • Problem related to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can result in turbo boost and a disturbance in the performance of the turbo.
  • Problem in connection with the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disrupt its proper operation.
  • Finally, the last trouble that could lead to a glow indicator light on your Mazda CX 3 coupled with a loss of power, is that your fuel filter is too dirty, you should 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 Mazda CX 3

To conclude, we’ll give you the explanations for a glow plug light that comes on on your Mazda CX 3 without you feeling any difference in power or car behaviour. Generally, this is an electronic problem:

  • Glow plug relays or fuses to be changed, test and change 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 get rid of 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

    • To discover more tips on the Mazda CX 3, take a look at the Mazda CX 3 category.