FUEL INJECTOR ULTRASONIC CLEANING / MAINTENANCE SERVICE for Gasoline Direct Injection (GDI) Injectors

We use the Classic GDI ASNU machine to test and clean GDI injectors, ASNU are the world-leading name in the Testing & Servicing of gasoline injectors for the automotive industry

We service gasoline fuel injectors using our ultrasonic flow bench and service machine. Why buy reconditioned fuel injectors when we can make yours like new again.
Our Service has been developed with the technology of ultrasonic cleaning and fuel pressure control, which can clean and test injectors by simulating engine working conditions.


Our service consists of two steps, testing and ultrasonic cleaning:
The testing step includes:

  • Uniformity/Sprayability  Test: To test the uniformity of injection amount of each injector and to monitor the spraying status of each injector with the help of backlight. This test is also for reverse flush
  • Leakage Test: To test the sealing and dribbling conditions of injector under system pressure
  • Injecting Flow Test: To check the injection amount of the injectors in 15 seconds of constant injection
  • Inductance Test: To test the internal circuit of the injectors

The Ultrasonic cleaning step includes:

  • Ultrasonic cleaning: To perform simultaneous cleaning on several injectors and to remove the carbon deposits on the injector completely
  • New o-rings for your injectors are included in our service - subject to availability

Ordering Instructions

Thank you for trusting us to clean your injectors, the cost per injector is $19.99, if you have more than one injector to clean please input the appropriate quantity in the "Buy it now" field.

Please keep in mind the following:

  • Work on your injectors can not start until customer information is received
  • To ensure proper testing, please leave o-rings and spacers on the injector
  • Dry each injector and then place it in plastic bags. Placing the injectors in a plastic bag will also prevent gasoline odors coming from your parcel

Ship your injectors to:

     Premium Fuel Pumps LLC

P.O. Box 8151

San Luis, AZ 85349


Current Turn Around Time is One business day – 24 Hours or less - we specify 10 days handling time because we are including the transit time from the customer. Once we receive them Current Turn Around Time is 1 business day 

If your injectors arrive before 12pm Arizona time they will go out in the mail the same day. If they arrive after 12pm they will go out the next working day.

You can choose USPS priority return shipping which is 2 to 3 business days to most locations for FREE!

If you need quicker shipping you can select UPS overnight service, in addition we also offer UPS ground  (UPS shipping costs are calculated automatically by Ebay).


Competitive advantages that differentiate us from others:

  1. We use the USPS Free Priority Shipping Service because we know the importance of S&H time for our customers, most of our competitors use Economy Service
  2. Better feedback than our competitors, we know the importance of customer service. Customer satisfaction is our main priority

Warranty: We guarantee the performance of your injectors after service for one year. We don't cover any defect in your cores. Case leaks and electrical problems are not covered. We are not responsible for defective or non-working injectors sent to us. Before and after reports are not provided

To request a warranty claim feel free to click on the contact us link and provide us with the details of the claim

Restrictions: 
  1. To honor warranty, part must be installed by a certified technician or experienced mechanic. 
  2. Premium Fuel Pumps LLC warrants solely to the original purchaser of the product.
  3. The defective unit must be returned to us using the prepaid return shipping label we will provide at no cost to you. Failure to return the defective part in 30 days results in the termination of any future warranty claims.
  4. Premium Fuel Pumps LLC does not warrant this device for purposes other than the vehicles listed in the compatibility table and vehicles listed in the fitment information.

Premium Fuel Pumps LLC will not cover any cost associated with removal or installation of replacement or defective parts
***The warranty is limited to a FREE replacement of the part or refund of the original order***