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. Today we’re going to try to help you to resolve an injection problem on your Volkswagen Polo 5 . This is a problem that is particularly bothersome because it can sooner or later bring your car to non starting or broken engine. To achieve this, first we will discover how injection works, then, what are the different concerns that can exist on a Volkswagen Polo 5 injectors , and at last, how to resolve them.

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What is the aim of the injection of a Volkswagen Polo 5?

So we begin our content by promptly detailing how an injection system works so that you have all the info you need to discover the failure connected with it. < br>
The injection system of a Volkswagen Polo 5 controls the fuel intake into the engine , it replaces the old carburettors. It has the advantage to be much more precise and to come, under pressure, to discharge 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 Volkswagen Polo 5. The advantage 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 Volkswagen Polo 5?

Now in this second component, we are going to discover the different injection complications and their manifestations that you may encounter on your Volkswagen Polo 5 .

Injection pump complications Volkswagen Polo 5

To begin, we will discover the injection pump complications on your Volkswagen Polo 5, there are not many of them, they are often recurrent 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 cause a bad air/fuel mixture and consequently a bad combustion and thus alter the behavior of the engine of your Volkswagen Polo 5.
  • Leakage from the injection pump of your Volkswagen Polo 5: If you have a major leakage problem, the consequence 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 consequences and manifestations of a fuel pump problem on a Volkswagen Polo 5 , you will obviously feel, a lack of power, your engine grazing, dark smoke emissions…

Injectors complications Volkswagen Polo 5

Now we proceed to the injector problems on Volkswagen Polo 5 . Injectors represent the end of your injection system, here are the different complications you may encounter:

  • Dirty Volkswagen Polo 5 injectors: This can happen as a result of poor fuel quality, they will let less fuel through or more if they are completely clogged. So you will potentially have one or more cylinders that are not working properly.
  • Leaky Volkswagen Polo 5 injector: It’s often at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Volkswagen Polo 5 HS: This is the case when your injectors are completely clogged or when you have an electronic problem, it will not let anything go.

Regarding the symptoms of injector complications on your Volkswagen Polo 5 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 Volkswagen Polo 5?

To conclude our article on the injection complications on Volkswagen Polo 5 , we will try to give you the solutions that exist to resolve these complications.
If after a precise analysis it’s your injection pump that is the cause of your complications, it will regrettably be very difficult to intervene on the trouble without replacing the component, this change 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.
Concerning a problem with an injector there are various solutions based on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Volkswagen Polo 5, do not be reluctant to seek advice from our content on this subject to get the process. If it doesn’t work, you will have to replace 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 have the ability to change it, do not think twice to seek advice from our content on the injectors that leak on Volkswagen Polo 5, to have all the solutions available to you.
  • Injector HS: Finally, last solution, your injector is broken or doesn’t work anymore, generally speaking, the replacement of an injector costs around 500 euros labor included.

To discover more tips on the Volkswagen Polo 5, take a look at the Volkswagen Polo 5 category.