Two types of jobs we do:

GDI Injector (Direct Injection)

Injector Control: SEK 200 / pcs

Full Service: 350kr / pcs

Note the minimum charge amount 500 SEK.

You pay for the job and the shipping back to your local delivery point.

1. Injector control:

First, the Injector is checked externally for any damage, bad o-rings, etc.

Then the resistance and inductance (Meg on Piezo) of the Injector are tested. So they hold the same resistance as from the factory and that the inductance does not vary between the injectors.

A leak test is done. Fuel pressure is applied to the top of the Injector and controlled so that it holds 100% tight when closed.

Spray image is checked. Both static (fully open) (not Piezo) but above all dynamic at a number of different opening times. Check if the spray image is still like the factory or if it has become weak or oblique, poor atomization that can cause droplets or otherwise poor spray image.

The flow is dynamically controlled and written on the protocol so you can see the difference between the Injectors.

The flow is also controlled statically (not Piezo). So you can see the maximum flow of the Injector.

Should something be wrong, the customer is contacted if service is to be done on the Injectors or if it should be returned as they are with the protocol.

The Injecotrs are returned marked with numbers and you can then see on the accompanying protocol how much each individual Injector flows.

2. Full service (tests, ultrasonic washing and new filters and o-rings and teflonrings included)

Then o-rings and the internal filter are removed.

The injectors are placed in ultrasonic washing, and in the meantime are pulsed with various short and long opening times so that they are cleaned internally.

After washing, new o-rings and filters are mounted in the injectors.

Then all tests are performed again as before washing and everything is noted on the protocol.

The flow is also controlled statically (not Piezo). So you can see the maximum flow of the Injector.

You can see if and how many % the flow increased after washing if it was that the Injector was more or less clogged.

The Injector is delivered back marked with numbers and you can then see on the accompanying protocol how each injector is. Old O-rings and filters are also sent back.

Should there be any Injector that cannot be saved with ultrasonic washing, the customer should be contacted about any solution.

When it comes to Piezo spreaders and you have to replace one or more, you have to check the index number on them. If they have an index number of 10 or lower, they can be paired. If they have 11 or higher, they can pair up. 11s and higher numbers are bigger so you can't mix 10s and 11s for example. Calibration values are indicated on the nozzles. Depending on the index number, they can be found either on the plastic part or on the upper metal part. The injectors must be coded in the engine control unit after installation if you changed the injector with a different index number.

Piezo injectors that are mechanically worn out or damaged will not help a full service as no internal parts can be replaced. The only way to know if the injector can be saved is to do a full service and that way find out if it works as it should. Currently, we have noticed that in about half of the cases, the injectors will be fine after a full service.

Currently, we cannot get hold of new or used Piezo injectors.