Injector Service

We provide Gasoline and Ethanol injector service and testing with the most modern ASNU injector servicing equipment in Finland. We can also service and check GDI and Piezo injectors that spray directly into the cylinder. Diesel or Etec injectors are not tested or serviced at all.

When is it time to service/check injectors?

Injectors should always be checked if the vehicle/injectors have been sitting unused for a long period of time. Especially when the injectors have been dry out of the engine.
If the vehicle has suffered engine damage (melted piston, burnt valve, etc.), the injectors should be checked to avoid further damage.
You have purchased a new or used set of injectors for a tuning project and you are not aware that the injectors have been tested recently. Even new injectors have a surprising flow differences between them.
For vehicles parked over the winter, it's a good idea to have the injectors checked in the fall at the end of the season so that they're ready to go in the spring. Spring is the busiest time for injector service and queues can be long.

Injector testing.

We prepare a report on the testing, which shows, among other things, the maximum flow rates of the injectors, the inductances of the coils, the flow differences also when tested dynamically and possible leaks.

Servicing of injectors.

The service report includes test results before and after service, the mutual flow percentage difference and any change in injector flow.
During service, replaceable injector parts will be changed, seals, filters and possible pintlecaps. For hose-type injectors, connecting hoses are replaced with ethanol proof hoses. Parts are charged separately and are specified on the receipt.

Injector maintenance and testing prices


Manifold spray injectors:
  • testing with report 14 €* / injector
  • service, including tests before and after service 28 €* / injector
  • spare parts charged separately, typically 5-8 €* / injector
Sidefeed injectors:
  • testing with report 16 €* / injector
  • service, including tests before and after service 32 €* / injector
  • spare parts charged separately, typically 8-12 €* / injector
Hose injectors with hoses in place:
  • testing with report 19 €* / injector
  • service, including tests before and after service 38 €* / injector
  • spare parts charged separately, from 15 €* / injector
High pressure injectors (in-cylinder) TSI, GDI, etc:
  • testing with report 22 €* / injector
  • service, including tests before and after service 44 €* / injector
  • spare parts charged separately, typically from 10 €* / injector
Piezo high pressure injectors (in-cylinder injectors) BMW, MB, etc:
  • testing with report 24 €* / injector
  • service, including tests before and after service 48 €* / injector
  • spare parts charged separately, typically 3-6 €* / injector

*Prices include Finnish VAT. 24%

Delivery of injectors

Injectors sent for service must be cleaned of loose external dirt and fuel shaken out, otherwise we will charge for cleaning the injectors. If the injectors are delivered to us installed in a fuel rail, then we will charge for removing the injectors from the fuel rail separately.

Injectors can either be brought to us or sent by as a parcel. We are unable to accept complete cars.

Service queue is usually 1-2 days, we do injectors in the order that they come to us. Returns for consumer customers in Finland are done by Cash on Delivery parcel (payable at the time of collection from the post office)

Returns outside of Finland are done by DHL Express, paying for injector service is done by either Paypal or invoice before shipping.

Delivery and pickup address:

    Finjector.com
    Isonpellontie 7
    00720 Helsinki, Finland
    huolto @ finjector.com
    0505173633

                                   Questions about injector testing service you can send to service email.
                                                        huolto @ finjector.com (remove spaces)

Download the pre-fillable injector service form here.

Fill in your address details and what you want for us to do to your injectors. The other fields are optional.

Injectorserviceform.pdf