intake clean

Some of you may not know we are able to carry out Petrol Injector testing and cleaning! We invested in an ASNU petrol injector machine and are able to service your injectors to help you optimize engine performance! We often add this service onto an Intake Valve Carbon Clean as whilst we are in the engine it makes sense to test and clean the injectors at the same time!

So why do petrol injectors cause problems?

Engine fuel Injectors collect dirt, grime and soot. As the injector sprays fuel into the intake manifold at a precise angle and speed, the dirty injector can cause issues due to the Air and fuel mix being inaccurate. Often symptoms of injector problems include; engine misfires, rough idle, mpg dips and unpredictable movements of the RPM needle. In the worst case, your car won’t start!

So what does the ASNU machine do?

We decided to invest in the ASNU Injector Diagnostic Testing & Servicing Systems. The machine puts the injector through various testing. ‘The ASNU system has been designed for comparing injector against injector at a safe operating level. The ASNU system allows the user to visually examine the injectors on an individual cycle or in sequential mode, where they can compare the performance of the injectors under a range of simulated Millisecond & RPM driving cycles already programmed into the ASNU system. The injectors can be operated at various RPM & MilliSecond settings, restricted only by the number of injectors being tested in the sequential testing operation.’ Once the injectors are tested, they are thoroughly cleaned in an ultrasonic bath. We will then replace any seals on suitable injectors that require it, then they are good to go.

Here’s a ‘link’ to the ASNU website to find out more!

Injector cleaning is £30 inc VAT per injector. We will be creating more videos in the coming months on how injector cleaning works and the benefits! You can follow our YouTube and Facebook pages to keep up to date by clicking the links.

We can also test and clean your injectors without the vehicle! If your car is having some issues and your injectors are already out, get in touch and send your injectors too us and we’ll post them back with a full report. Get in touch via the contact page.

We have been undertaking plenty of ASNU Classic GDI injector cleaning recently in the workshop. We advise getting your injectors tested and cleaned along with a carbon intake valve clean. These two jobs go hand in hand. When your valves get a build up of carbon, they in turn start to block the tiny holes on the injectors. When the holes on the injectors get blocked up, the spray pattern becomes irregular between each injector which causes the vehicle to misfire/run lumpy along with various other issues.

The ASNU Injector Cleaning system allows the us to visually examine the injectors, on an individual cycle or in sequential mode. We can then compare the injectors performance under a range of simulated Millisecond & RPM driving cycles, already programmed in to the ASNU system.

Injector cleaning machine

Here’s a slow motion video showing the spray pattern on 4 injectors. As you can see the spray pattern is exactly the same on each injector. This shows that the holes on each injector must be clear of dirt particles.

https://www.youtube.com/watch?v=GBhk_zNQ3_w

The injectors also get a flow test. To do this, test fluid is pumped through the injectors to make sure they allow the same measurement through. We can safely allow a 10% difference between the least measurement, and the most. As you can see on the picture below, this test has shown each injector is working to exactly the same level.

ASNU Classic GDI Injector Cleaning

Once they come out of the ASNU Classic GDI Injector Cleaning system, they sit in the built in Ultrasonic Cleaning Bath. As a result, this will clean the outside of the injector and pulse through any particles of dirt.

In conclusion this is just one service carried out by ourselves. One of many that our current and future customers may not know about. Find out more on our services page here: https://www.northeastautotech.com/additional-services/