FOXWELL JT400 4 Cylinder Car Fuel Injector Ultrasonic Cleaner GDI EFI Tester

Foxwell JT400 Introduction

Thank you for purchasing the JT400 GDI-608 Pro Injector Cleaner & Tester with the technology of ultrasonic cleaning and fuel pressure
control, this equipment is an advanced electromagnetically product, which can clean or test injectors by simulating engine working conditions. It can also perform cleaning on the injectors and fuel supply system on vehicle
Notice: This product supports 99% of petrol injector cleaning and testing.  However, for diesel injectors, it only supports cleaning and not testing.
Top Reasons to Choose Foxwell JT400 4-cylinder Fuel Injector Cleaner & Tester
● [ 100w Ultrasonic Cleaning ]: Start the machine, and press the key to modle 8.  lt can perform ultrasonic cleaning on single or multiple injectors simultaneously, which can eliminate thoroughly blockages on the injector accessories and internal.
 [ Automatic Control/Real-time Monitoring ]: Microcomputer automatic control and digital display technology: the cleaning and detection process can be automatically controlled, and the main status parameters can be monitored in real time
● [ 2000ml Large Capacity of Cleaning Tank ]: Foxwell JT400 Fuel injector Cleaner only weighs 12KG, allowing to carry around. With 2000ML large capacity ultra cleaning tank, all injectors can be cleaned at one time, which save much time and more efficient.
● [ Multi Voltage Selection ]:: Foxwell JT400 Fuel Injector 4-cylinder Cleaner and Tester designs with various types of voltage output (12V, 70V & 120V) to be selected to adapt for different types of injector testing.
● [Various Parts equipped ]:: It is equipped with a variety of injector accessories for different needs.
● [ Environmental Friendly& Widely Use ]: The used cleaning fluid and testing fluid can be easily recovered.  Support most of the automobile and motorcycles in the market.  Applicable voltage is compatible with 110V or 220V.
[ 5 Years Warranty ]: For damage caused by non-human factors, Foxwell promises to resend parts for free within 5 years.   For any needs, you are warmly welcomed to contact us and we will get back to you ASAP within 24 hours.

Foxwell JT400 Main Functions:

1.Injector Test : Detect solenoid injectors resistance
2. UNIFORMITY TEST: Inspect fuel injection of each injector by observing its uniformity.
3. SPRAYABILITY TEST: Inspect atomization of each injector by observing.
4. LEAKAGE TEST: Inspect the sealing conditions of the injector needle valve under system pressure and to
find out the injector with oil droplet.
5. INJECTION TEST: Inspect injecting volume in 10 seconds meets the design specifications.
6. AUTO MODE test : Inspect the injectors according to the established program1 of the equipment
7. VARIABLE SPEED TEST: Inspect the injectors in variable speed conditions
8. ULTRASONIC TEST : Clean the carbon deposits inside the fuel injector through ultrasonic
9. ON-VEHICLE CLEAN : Cleaning the engine fuel supply pipeline, injector, and combustion chamber with the
machine does not require disassembling.
10. SYSTEM : Set the language and unit of the device operating system, query device information, and
restore device factory settings
11. DATABASE: Querying the working pressure of various vehicle models' fuel systems
12.HELP : Querying device fault code information
 
Foxwell JT400 Main Features
▶ The special structure design makes the disassembly and assembly of the fuel separator easier and  greatly improves the work efficiency.
▶ With the resistance test of the injectors one by one, get to know the condition of the injectors.
▶ The ultrasonic cleaner is integrated on the machine, which makes the operation easier and more efficient.
▶ With the dedicated motherboard, it can support the full and long test of low resistant fuel injector such as 1 ohm.
▶ The unique fuel circuit depressurization technology can make the machine automatically depressurize in the case of sudden shutdown, avoiding equipment damage or personal injury.
▶ The brightness of the screen and backlight, and the level of the buzzer can be manually set and saved.
▶ The product adopts fuel pressure adjustment and control technology by microcomputer, which can ensurestable fuel pressure and wide adjustable range. It is applicable to vehicles equipped with a variety of gasoline injection systems. Meanwhile, the automation of injectors’ cleaning and testing processes can be realized.
▶ Thanks to the adoption of microcomputer automatic control and digital display technologies, the cleaning and testing processes can be controlled automatically, and the parameters of the main status can be monitored in realtime.
▶ Adopting humanization design can make the system pressure fast restored to the default values.
 

Ultrasonic Cleaning Operation:
1.Pour in the injector detergent and place the injectors in the ultrasonic cleaner tank.
2.Connect the pulse signal wire and select the ultrasonic cleaning function to start working.

Fuel Injector Testing Operation:
1. Pour in the test liquid,install the fuel injector is to the fuel dstributor and fix main unit body
2. Test if the injector is leaking or blocked under different functions.

How to choose test fluid?
The test fluid is used to test and judge whether the performance of the fuel injector is in good condition. It is a colorless and transparent liquid with no irritating odor, non-corrosive, and not easy to emit. Its function is to simulate various working states of the fuel injector as a medium. In order to achieve the best test effect, it is recommended to use professional automotive injector test fluids. If it is not available locally, as an alternative, it's recommended that medical alcohol with an alcohol content of more than 75% can be used instead of the test fluid.
How to choose cleaning fluid?
Cleaning fluid is used to clean deposits (such as carbon deposits) on fuel injectors, and it is usually highly corrosive and flammable. In order to achieve the best test effect, it is recommended to use professional injector ultrasonic cleaning fluid. If it is not available locally, it's recommended that medical alcohol with an alcohol content of more than 75% can be used instead of the cleaning fluid, but note that the effect may not good enough.
Working Conditions& Specifications:
Voltage:AC220V or 110V,
(customized) Main-unit Max Power:300W
Display: 4.0 inch LCD
Ultrasonic power:60W
Pulse range:0.5~25ms ,step 0.1ms
Simulated speed:100~9900rpm ,step100rpm
Resistance measuring precision: 0.1 ohm
Tank volume:3L
Oil pressure: 0~8 bar
Main unit size: 420X440X503mm
Ambient temperature:-10℃~+40℃
Package size: 460*490*555mm
Ambient Humidity:<85%
Ambient magnetic strength:<400A/m
 
 
 Packing List:      

• Main unit:1 set

• Ultrasonic cleaner cover:1 pcs

• Injector cleaning bracket:1 pcs

• Fuel distributor package:1 set

• 4-cylinder pulse signal cables:1 set

• Pulse signal connection cable1:4 pcs

• Pulse signal connection cable3:4 pcs

• Pulse signal connection cable4:4 pcs

• Adaptor 1 for fuel top-supply injector:4 pcs

• Coarse thread adaptor for fuel top-supply injector:4 pcs

• Swiss thread adaptor for fuel top-supply injector:4 pcs

• Hexangular stopper:3 pcs

• Adjusting pole(H80):1 pcs

• Knurled nut:1 pcs

• Pressing screw:1 pcs

• Adaptor for GDI injector(D16):4 pcs

• Top Oil Supply Connector(D17.5):4 pcs

• Tool box:1 pcs

• Oil outlet adapter:1 pcs

• Power cable:1 pcs

• O ring 9.72.65:10 pcs

• User's manual:1 pcs

FAQ
1) The unit does not respond when the power is turned on.
Check the fuse on the lower right side of the unit and replace the fuse (5A) if it is damaged or broken.

2) Fuel distributor (rail) is leaking.
Check the o-ring and replace if damaged or broken. Do not tighten the adapter fitting too much,
otherwise, it may cause leakage.

3) When running, there is no working pressure.
When using a new machine for the first time, or if the machine has not been used for a long time, there may be no fuel
pressure. In this case, select the "first time use" function in the system functions, and then do the following:
a) Connect the test connector to the unit's fuel supply line and insert it into the fuel filler neck as shown in the illustration.
b) Then, run the first time use function.
c) When liquid comes out of the test connector, stop the operation. The device stops automatically after 30 seconds of operation.

4) There is no oil feed pressure, the buzzer sounds.
The machine has a lack of fuel warning function, when there is not enough fluid in the tank, the machine will beep, then
automatically shut down the fuel pump and injector nozzle, and return to the stop state. Add test fluid to the unit until the
buzzer stops beeping.

5) Completely emptying the test fluid from the glass tube requires pressing the Drain button several
times.
The solenoid valve will automatically stop after 15 seconds and will need to be emptied more times if more fluid is present.
Precautions
a) 1)Do not place anything on the control panel to prevent breaking the test measuring cup/glass panel.
b) 2) Do not disconnect the oil feed connection until the system pressure reaches "0" to prevent test fluid from spraying out.
c) 3) Always ensure that the unit is reliably earthed when in use.
d) 4) The device has a lack of oil alarm function. When the liquid level falls below the minimum line, the device will emit a warning
sound and at the same time automatically stop the oil pump and injector nozzle work. Until the test liquid is sufficient, the
equipment will be able to work normally.
e) 5) Clean the control panel in time, pulse signal line please ask stained test liquid, cleaning agent.

WARNING
Do not disassemble this equipment for servicing without authorized personnel. Damage resulting from this is not covered
by the warranty. In the energized state, there is strong electricity inside the device and the housing must not be opened. It is
strictly forbidden to repair the equipment with electricity! All injuries resulting from violation of this warning are not
covered!
Arrangement after use
a) It need to do some job as below after use.
b) Press the "Drain" icon to drain the test fluid into the fuel tank.
c) Turn off and pull of the power plug.
d) Clean the machine with a soft cloth.
e) Drain the test fluid from the fuel tank into a container to avoid evaporation. If reuse, store the it in a safe place and dispose of it
according to the relevant regulations if it is too dirty

 

- We accept all common forms of payment such as Credit cards、Debit card ,Google Pay ,Visa etc. 

- Please contact us if you need to use another method to pay.

- Payment should be made within 7 days after bidding ends.  Otherwise a Unpaid Item case will be opened to you.

 

Will usually ship within 1 business day of receiving cleared payment.
 
1. Ship from USA local warehouse via UPS or USPS shipping . Delivery time varies from 2 to 5 business days.
 
2. We will ship according to your eBay address. Please make sure it is correct and include phone number for delivery.

3. Ship to HI, PR, AKand other overseas states and other countries requires payment of courier fees.

- We are not responsible for buyers’ local taxes.

If you do not receive your order in the estimated time, please contact us, we would do our best to serve you solve the problem.
 

We are authorize distributor, our all items are 100% original and Our devices have warranty,

12 months free repair for the devices.

3 months for the accessories.

- 60 days free return service  .

- Free return . Select the reason for the return 【Didn't like item】or 【Ordered by mistake】, then we will upload the return label   ,  you will can get a full refund faster. 

Please contact us firstly when you need warranty service and free return service  .

In case an item arrives faulty, please contact us in 30 days and keep it unused.

We will instruct you on how to return and get refund or replacement.

If after 30 days, or the item has been used, we have the right to decline your claim.

Items should be returned on buyers’ cost for repair or replacement. 

 WHO WE ARE?
We are authorize distributor for many manufatcurers.  We guarantee all items are 100% original  .

WHAT WE HAVE?
We have over 4 warehouses that are located in US.  Fast delivery .


WHAT WE SELLING ?
We is mainly deals in various types of professional car diagnostics scanners and other car service maintenance tools.  

For example ---  Car & HD Diesel Trucks & Motorcycle Diagnostic scanner , Mile-age correction Tool / Key programming tool  , Smoke test , Electrical system probe test ,Battery tester ,injector cleaner etc .

Our customer-oriented service strives for positive feedbacks with all 5 star selling ratings.

Please feel free to contact us via eBay message once you have any question before you giving us negative feedback or open case.  

We will reply in 24 business hours.

Business time: GMT8 (9:00-18:00) from Monday to Friday.
 


On Feb 25, 2026 at 20:04:01 PST, seller added the following information:

Datacaciques