Having a issue with your motor vehicle is basic, because regrettably recent automobiles are more and more difficult 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 8 . This is a issue that is specially bothersome because it can eventually bring your vehicle to non starting or damaged engine unit. To do this, first we will see how injection functions, then, what are the different problems that can exist on a Volkswagen Polo 8 injectors , and finally, how to resolve them.

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What is the aim of the injection of a Volkswagen Polo 8?

So we start our article by promptly explaining how an injection system functions so that you have all the info you need to discover the failure affiliated with it. < br>
The injection system of a Volkswagen Polo 8 controls the fuel intake into the engine unit , it replaces the old carburettors. It has the advantage to be a lot 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 discharge the fuel in the form of micro-drops into the cylinders of your Volkswagen Polo 8. The advantage 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 Volkswagen Polo 8?

Now in this second part, we are going to see the different injection problems and their manifestations that you may face on your Volkswagen Polo 8 .

Injection pump problems Volkswagen Polo 8

To begin, we will see the injection pump problems on your Volkswagen Polo 8, there are not many of them, they are generally frequent but we will outline them down 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 cause a bad air/fuel mixture and consequently a bad combustion and thus alter the behavior of the engine unit of your Volkswagen Polo 8.
  • Leakage from the injection pump of your Volkswagen Polo 8: 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 outcomes and manifestations of a fuel pump issue on a Volkswagen Polo 8 , you will obviously feel, a lack of power, your engine unit grazing, dark smoke emissions…

Injectors problems Volkswagen Polo 8

Now we move on to the injector problems on Volkswagen Polo 8 . Injectors are the end of your injection system, here are the different problems you may encounter:

  • Dirty Volkswagen Polo 8 injectors: This can happen due to 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 functioning effectively.
  • Leaky Volkswagen Polo 8 injector: It’s generally at the high pressure seals that an injector can leak, it can also, more rarely, be cracked or broken.
  • Injector Volkswagen Polo 8 HS: This is the circumstance when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go.

Concerning the signs of illness of injector problems on your Volkswagen Polo 8 it is about the same as for a faulty injection pump. You may experience problems with starting, throttle response, power loss, and smoke emission.

How to solve an injection issue on a Volkswagen Polo 8?

To finish our article on the injection problems on Volkswagen Polo 8 , 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 source 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 issue with an injector there are different solutions based on your concerns, here they are:

  • Dirty injector: You can clean the injectors of your Volkswagen Polo 8, do not be reluctant to consult our article 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 hesitate to consult our article on the injectors that leak on Volkswagen Polo 8, 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 Volkswagen Polo 8, take a look at the Volkswagen Polo 8 category.