ASNU Corporation Europe Ltd.

Address
ASNU Corporation Europe Ltd. 65-67 Glencoe Road
Bushey Herts
WD23 3DP
Great Britain and Northern Ireland
Telephone+44 20 8420 4494
Fax+44 20 8420 4495
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About us
ASNU are the world leaders in their field and are approved and recommended by Bosch and used by most of the leading Vehicle Manufacturers around the world.
As market leaders for over 30 years, the ASNU Network has a greater knowledge and experience in Gasoline Injectors than any other of our competitors.
ASNU have a reputation for quality products, produced in our factory in Bushey in the UK and offer a Technical and Service Support that is second to none, a critical factor when investing in any workshop equipment, cornfirmed by those using ASNU in over 60 countries worlwide.
ASNU Corporation will be demonstrating their World Leading Gasoline Injector Diagnostic Testing & Servicing Systems, covering EVERY Gasoline Injector ever produced, including Mechanical K-Jetronic, Solennoid Port Top Feed & Side Feed, Gasoline Direct Injection (GDI/FSI) Solenoid & Piezo Injectors.
ASNU will also be displaying their range of Gasoline Performance Injectors, Fuel Pumps and Accessories.
ASNU have the largest range of purpose built Performance Injector in the world with adaptors to suit every vehicle application.
ASNU will also be showing their new range of Classic Injectors, designed to replace the obsolete but still required D-Jetronic and L-Jetronic EV1 Style Port injectors still in use on most of the Classic Fuel Injected Vehilces.
ASNU Can Test & Service EVERY Gasoline Injector from Motor Vehicles, Motor Bikes and Marine Engines using Gasoline or Natural Gas Systems.
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Keywords
- Injector Diagnostics
- Fuel Injection
- Injector Servicing
- Gasoline Direct Injection
- Performance Injectors
Our Products

The ASNU Piezo Box
Piezo injection is the current system of choice of major executive vehicle manufacturers. Piezo injectors can respond so quickly that they can allow the vehicle to run at incredible air/fuel ratios of up to 60:1 in some engines. Compared to standard vehicles running at 14:1 air/fuel ratios, this means the minimum amount of fuel is used and the exhaust emissions are virtually non-existent, while still maintaining excellent drivability and performance.
As you can imagine, the performance of these injections is critical, maintenance should not be an option, it should be mandatory. How often do you check your Piezo injectors?
In conjunction with a world-leading vehicle manufacturer, ASNU has created this purpose-built adapter box.
Easy to use test functions using the latest Piezo technology. Easy connections to Classic GDi Machine or GDi adapter Box. Universal fittings for Piezo type injectors.

ASNU Performance Injectors
ASNU have over 30 years of experience with injectors from all the various injector manufacturers worldwide. ASNU is represented in over 38 different countries, with thousands of injectors being tested and serviced in Aftermarket and Motorsport worldwide; a programme and experience unrivalled by anyone else in the world. This gave ASNU the greatest experience and understanding to develop a range of performance injectors that will do exactly what they are designed for - Correct Performance. ASNU Performance Injectors are purpose-designed and built with the ideal spray pattern to match the flow required. They are designed to meet the varied demands of the Racing & Performance markets, with the largest range in the world!
All ASNU Performance Injectors have a multi-hole orifice cap, cut using the latest laser technology for greater accuracy and repeatability. Using this technology allows us to produce injectors with specific spray patterns and flow rates to meet the customers' exact requirements. The seven-hole orifice cap that we use in most of our injectors in the lower end of the range (300-1000cc) offer an ideal combination of Fuel Flow, Fuel Distribution and Fuel Atomisation. The seven holes produce smaller fuel droplets that will burn more efficiently, giving more performance and more laps for less fuel. This is a critical factor and should be considered when comparing ASNU injectors to any other Performance injectors.

ASNU GDI/FSI Adapter Box
The ASNU GDI Adapter Box has been designed to drive Gasoline Direct Injection (GDI) injectors with an approved supply of current and voltage to simulate injector electronic operation as on the engine. Correct Electronic Operation is critical when examining the injector’s response to changes in mS & RPM. Examination of the injectors Fuel Distribution and Atomisation is equally critical to the Engine's Correct Running, Performance, Fuel Economy and Emission Outputs. Even the slightest irregularity in the Fuel Spray pattern would result in illumination of the Engine Check Light, but with no specific cause identified.
GDI injectors are difficult and time consuming to remove and re-fit! Would you fit a new set of injectors without ensuring they are working correctly?
Technical Features
Dedicated Driver Currents
Suitable For All Types GDI Injectors
Tests Up To 8 GDI/FSI Injectors at one time
Sequential Injector Firing Operation
18 Various M/S & RPM Test Settings
Suitable for Standard Manifold Injectors
High-Performance Option
Simulates on-car Spray Patterns & Flow Rates
Accepts High & Low Resistance Injectors
Single Injector Selection Operation
Injector Leak Down Test
Injector Inductance Test - Electro Magnetic Circuit (mH)
Ultrasonic Injector Cleaning Cycle
12 Language Selection Screen
Easy to Read LCD Screen
Membrane Key Pad
Separate Wiring Harnesses
Teflon Seal Fitting Tool
Use with Any ASNU System
Updates Old ASNU Machine To Latest Specification
Easy Connection to ASNU system
Choice of colours
Close examination of a GDI injectors spray pattern is critical for Engine Performance, Fuel Economy and Exhaust Emissions. Inconsistent spray patterns will have serious consequences.

The ASNU 2 Stroke GDI Box
The 2 Stroke GDI system has been produced to drive Evinrude and Ficht Direct Injectors with an ASNU Classic GDI machine.
2 Stroke GDI Box Benefits;
Run Ficht and ETEC injectors using any Asnu Classic GDI machine / GDI Box
Recover seized injectors
Clean fouled injectors
Leak test injectors
Dynamic flow test injectors (pulsing)
View spray patterns
Ficht & E-TEC Injector Applications
Marine (Evinrude, Johnson outboards and Sea-Doo jet skis)
Snow (Ski-doo, and Polaris snowmobiles)
Land (Polaris and Bombardier ATV products)
Injector Driver Technical Details
Automatic detection of Ficht or ETEC injector connection
High voltage drive
Uni-directional high current drive (Ficht)
Bi-directional high current drive (E-TEC)
100 – 5000 injections per minute pulsing range
96 – 264Vac 50/60Hz electrical supply range

ASNU Classic GDI
TEST & SERVICE EVERY GASOLINE INJECTOR EVER PRODUCED!
K-JET/PORT/SIDE-FEED/TOP FEED/MONOPOINT/GDI/SOLENOID/PIEZO
What is GDI?
GDI is an abbreviation for Gasoline Direct Injection, a process where the fuel is injected directly into the combustion chamber.
There are many variations of this process, with manufacturers preferring their own abbreviation of the system, here are some of the ones currently in use:
FSI = VW Audi ( Fuel Stratified Injection)
SCI = Ford (Smart Charge Injection)
IDE = Renault (Injection Direct Essence)
JTS = Alfa Romeo (Jet Thrust Stoichiometric)
SIDI = Holden (Spark Ignition Direct Injection)
HPI = BMW (High Precision Injection)
HPDI = Porsche (High-Pressure Direct Injection)
Ecotec = GM, Vauxhall, Opel
CGI = Mercedes Benz (Charged Gasoline Injection)
DISI = Ford/Mazda (Direct-Injection-Spark-Ignition)
GDI = Mitsubishi Peugeot Citroën, Hyundai, Volvo, (Gasoline Direct Injection)
On a GDI system, the fuel is injected directly into the combustion chamber at a much higher pressure than manifold systems, up to 200 bar.
These systems now require fuel pumps and injectors made of stainless steel and must be capable of performing at a much higher specification than ones seen on previous manifold injection systems. Both designed to deliver very precise quantities of fuel at extremely high pressures and in short increments, in some cases for fractions of a millisecond
To control these systems, the ECU is also of a higher specification and required to supply a higher current of up to 90v on some systems. There are many manufacturers of this type of system, but Robert Bosch is recognised as one of the leaders in the development of GDI Technology.
The GDI System has two running modes: Stratified & Homogeneous
Stratified Charge Running Mode:
This mode is the economical combustion cycle, in some systems, the Air/Fuel ratio can be as high as 65 to 1. In this mode, the injector delivers a minimum amount of fuel into the combustion chamber, just before the piston reaches the top and before the plug fires. This mode is used at idle and light throttle settings when the car is driven slowly.
Homogeneous Running Mode:
This mode is what would be called a normal combustion cycle, with an Air to Fuel ratio of 25 to 1. In this mode, the injector delivers a normal amount of fuel into the combustion chamber. This gives the engine the required performance as the car goes faster.
The Engine Management System determines when the system needs to switch between the Stratified Charge Mode and the Homogeneous Running Mode.
Spray pattern & flow rate analysis
The ASNU system has been designed for comparing injector against injector at a safe operating level and is suitable for use by apprentice-level mechanics to Master level engineers.
To enable a safe and easy examination of the injector’s performance, the ASNU system runs the injectors at a lower and safer operating fuel pressure of up to a maximum of 10 bar. On a vehicle fitted with a GDI system, the fuel pressure will operate at a potentially dangerously high level for the inexperienced, reaching anywhere between 75 bar up to 200 bar on some systems.
The Engine Management System of a GDI is designed to open the injectors for short microseconds, with a maximum opening duration of only 5 milliseconds, and visual analysis of the injectors spray pattern could be both difficult and dangerous. When mounted on the ASNU Classic GDI, the injectors are being supplied with the correct peak and hold currents and firing in sequential mode simulating those of the vehicles ECU.
The ASNU system allows the user to safely examine the injectors Spray pattern in greater detail for any discrepancies in the fuel distribution and atomisation.
In some operating modes, the ASNU system opens the injectors for a much longer duration, thus exaggerating the spray pattern and making it easier to examine the spray’s performance.
GDI Injectors & Fuel Trims
The Distribution and Atomisation of a GDI injector are critical The Distribution and Atomisation of a GDI Injector are critical to maintaining the correct Performance, Fuel Economy and Exhaust Emissions. They are now even more important than the quantity of fuel being delivered by the injector. The latest adaptive Engine Management Systems have a Short and Long Term Fuel Trim adjustment, adjusting the fuel delivery as compensation for any discrepancies in the C.O emissions. An adjustment of up to 15% can be made to the fuel delivery of each injector on some systems, but as there is a number of measurements that contribute to the Fuel Trim Adjustment, these measurements cannot adjust or correctly compensate for poor Fuel Distribution and Atomisation.
FUEL TRIM ADJUSTMENTS ARE NOT CORRECTING THE CAUSE OF THE PROBLEM, ONLY COMPENSATING FOR IT. DON’T FIND THE PROBLEM, FIND THE CAUSE OF THE PROBLEM.
None of the current engine management systems can measure or compensate for the injectors fuel distribution and atomisation.A selection of GDI Injectors with discrepancies in the Distribution and Atomisation of the spray patterns.
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.