Having a problem with your car is traditional, because regrettably recent vehicles are more and more complex and consequently at the mercy of more and more possible breakdowns. On this page we’re going to try to help you to resolve an injection problem on your Infiniti QX50 . This is a problem that is especially irritating because it can eventually bring your vehicle to non starting or broken engine unit. To do this, first we will see how injection functions, then, what are the different problems that can exist on a Infiniti QX50 injectors , and at last, how to resolve them.

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What is the intent of the injection of a Infiniti QX50?

So we start our article by quickly explaining how an injection system functions so that you have all the information you need to discover the failures associated with it. < br>
The injection system of a Infiniti QX50 manages the fuel intake into the engine unit , it replaces the old carburettors. It has the benefit to be far more precise and to come, under pressure, to discharge the fuel in the engine unit. The injection pump takes care of pressurizing the fuel and transferring it to the injectors, and the injectors will release the fuel in the form of micro-drops into the cylinders of your Infiniti QX50. The benefit of fuel injection is to have a much more precise dosage than a carburettor and to enable a better air/fuel mixture and consequently a better combustion.

What are the different injection problems on Infiniti QX50?

Now in this second part, we are going to discover the different injection problems and their symptoms that you may face on your Infiniti QX50 .

Injection pump problems Infiniti QX50

To start, we will see the injection pump problems on your Infiniti QX50, there are not many of them, they are generally persistent but we will detail them down below:

  • Electronic problem of the high pressure pump: If you have an electronic problem, 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 unit of your Infiniti QX50.
  • Leakage from the injection pump of your Infiniti QX50: If you have a major leakage problem, the end 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

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Concerning the results and symptoms of a fuel pump problem on a Infiniti QX50 , you will most certainly feel, a lack of power, your engine unit grazing, dark smoke emissions…

Injectors problems Infiniti QX50

Now we move on to the injector problems on Infiniti QX50 . Injectors are the end of your injection system, here are the different problems you may encounter:

  • Dirty Infiniti QX50 injectors: This can happen because of poor fuel quality, they will let less fuel through or more if they are totally clogged. So you will probably have one or more cylinders that are not functioning effectively.
  • Leaky Infiniti QX50 injector: It’s generally at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Infiniti QX50 HS: This is the case when your injectors are totally clogged or when you have an electronic problem, it will not let anything go.

Concerning the symptoms of injector problems on your Infiniti QX50 it is about the same as for a faulty injection pump. You may encounter problems with starting, throttle response, power loss, and smoke emission.

How to solve an injection problem on a Infiniti QX50?

To end our article content on the injection problems on Infiniti QX50 , we will try to give you the solutions that exist to resolve these problems.
If after a precise diagnosis it’s your injection pump that is the reason of your problems, it will regrettably be very difficult to intervene on the issue without changing the part, this change generally 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 some diagnostics and estimates before starting any repair.
Concerning a problem with an injector there are different solutions depending on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Infiniti QX50, do not be reluctant to consult our article on this subject to get the procedure. If it doesn’t work, you will have to change them.
  • Leaky injector: The replace and the purchase of a joint kit will only cost you a few tens of euros, but you still need to be able to replace it, do not hesitate to consult our article on the injectors that leak on Infiniti QX50, 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 find more tips on the Infiniti QX50, take a look at the Infiniti QX50 category.