Having a issue with your car is basic, because unfortunately recent vehicles are more and more complex and consequently subject to more and more possible breakdowns. On this page we’re going to try to help you to solve an injection problem on your Infiniti QX80 . This is a issue that is specially frustrating because it can eventually bring your vehicle to non starting or damaged engine. To get this done, first we will see how injection functions, then, what are the different problems that can exist on a Infiniti QX80 injectors , and at last, how to solve them.


What is the purpose of the injection of a Infiniti QX80?

So we begin our content by quickly explaining how an injection system functions so that you have all the info you need to understand the failures associated with it. < br>
The injection system of a Infiniti QX80 controls the fuel intake into the engine , it replaces the old carburettors. It has the benefit to be a lot more precise and to come, under pressure, to release the fuel in the engine. The injection pump takes care of pressurizing the fuel and transferring it to the injectors, and the injectors will discharge the fuel in the form of micro-drops into the cylinders of your Infiniti QX80. The benefit of fuel injection is to have a much more precise dosage than a carburettor and to allow a better air/fuel mixture and consequently a better combustion.

What are the different injection complications on Infiniti QX80?

Now in this second part, we are going to explore the different injection complications and their symptoms that you may possibly encounter on your Infiniti QX80 .

Injection pump complications Infiniti QX80

To begin, we will see the injection pump complications on your Infiniti QX80, there are not many of them, they are quite often persistent but we will highlight them below:

  • Electronic issue of the high pressure pump: If you have an electronic issue, the pressure in your injection system may be too high or too low which will bring about a bad air/fuel mixture and consequently a bad combustion and thus alter the behavior of the engine of your Infiniti QX80.
  • Leakage from the injection pump of your Infiniti QX80: If you have a major leakage problem, the result will be much the same as if you have a lack of pressure, you will not have enough pressure and consequently the combustion of your fuel will not be good

Regarding the outcomes and symptoms of a fuel pump issue on a Infiniti QX80 , you will undoubtedly experience, a lack of power, your engine grazing, dark smoke emissions…

Injectors complications Infiniti QX80

Now we move on to the injector problems on Infiniti QX80 . Injectors represent the end of your injection system, here are the different complications you may possibly encounter:

  • Dirty Infiniti QX80 injectors: This can happen as a result of poor fuel quality, they will let less fuel through or more if they are entirely clogged. So you will possibly have one or more cylinders that are not working properly.
  • Leaky Infiniti QX80 injector: It’s quite often at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Infiniti QX80 HS: This is the circumstance when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go.

Regarding the symptoms of injector complications on your Infiniti QX80 it is about the same as for a defective injection pump. You may possibly encounter problems with starting, throttle response, power loss, and smoke emission.

How to get rid of an injection issue on a Infiniti QX80?

To conclude our content on the injection complications on Infiniti QX80 , we will try to give you the solutions that exist to solve these complications.
If after a precise analysis it’s your injection pump that is the source of your complications, it will unfortunately be very difficult to intervene on the problem without changing the part, this change quite often goes with the replacement of the injectors, and occasionally the tank, it will take between 2000 and 3000 euros for the whole, try to get several diagnostics and estimates before starting any repair.
Regarding a issue with an injector there are various solutions based on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Infiniti QX80, do not think twice to seek advice from our content on this subject to get the procedure. If it doesn’t work, you will have to change them.
  • Leaky injector: The change and the purchase of a joint kit will only cost you a few tens of euros, but you still need to be able to change it, do not hesitate to seek advice from our content on the injectors that leak on Infiniti QX80, to have all the solutions available to you.
  • Injector HS: Finally, last solution, your injector is damaged or doesn’t work anymore, generally, the replacement of an injector costs around 500 euros labor included.

To discover more tips on the Infiniti QX80, take a look at the Infiniti QX80 category.