Skip to product information
1 of 11

OBDResource

Automotive Fuel Injector Tester & Adapter Kit

Automotive Fuel Injector Tester & Adapter Kit

SKU: CC0335

Regular price $34.99 USD
Regular price $45.99 USD Sale price $34.99 USD
Sale Sold out
Shipping calculated at checkout.
  • Dual Injector Test — Compare two injectors quickly.
  • 10 Pulse Modes — Flexible test and cleaning modes.
  • 5V / 12V Support — Works with multiple injector types.
  • Digital Display — Clear real-time test data.
  • Built-In Protection — Safer testing and troubleshooting.
Quantity
  • U.S. warehouse
  • 3 Years warranty on eligible products
  • Free Returns
View full details

OBDResource 5V/12V Fuel Injector Tester & Adapter Kit – Custom PWM Pulse Signal, Adjustable Pulse Count, LED Display Injector Diagnostic Tool


Product Description

The OBDResource Fuel Injector Tester & Adapter Kit is a professional injector diagnostic tool engineered for modern fuel systems, featuring dual-voltage testing (5V and 12V), custom PWM pulse control, and adjustable test counts. Unlike many injector testers on the market that only support 12V fixed patterns, this advanced tester is designed to work with a wider range of injector types and control strategies, helping technicians perform more accurate injector activation and comparison tests.

With 5V/12V selectable output, the tool supports both low-voltage and standard injectors, reducing the risk of over-driving sensitive components and improving compatibility across more vehicles. The custom PWM pulse signal function allows you to simulate real ECU control signals, fine-tune pulse behavior, and evaluate injector response more realistically. You can also set the exact test count to repeat consistent cycles for comparison testing, cleaning verification, and spray pattern validation.

Featuring a clear LED display, user-friendly controls, and a multi-connector adapter kit, this injector tester is ideal for repair shops, fleet maintenance, injector service businesses, and serious DIY users who need precise, repeatable injector diagnostics.


Key Features

Dual Voltage Testing: 5V + 12V Output
Supports both 5V and 12V injector activation to match different injector designs and vehicle control requirements, offering broader compatibility than standard 12V-only testers.

Custom PWM Pulse Signal Control
Create and adjust PWM pulse behavior to better simulate ECU injector control signals, enabling more realistic testing and improved fault diagnosis.

Adjustable Test Count for Repeatable Results
Set the number of activation cycles for consistent, repeatable tests—ideal for before/after cleaning verification and side-by-side injector comparison.

LED Display for Clear Monitoring
Displays working mode, parameters, and test status for fast setup and accurate diagnostics.

Dual Injector Comparison Testing
Supports testing two injectors for direct performance comparison, helping quickly identify weak, clogged, or inconsistent injectors.

Universal Adapter Kit
Includes multiple injector connectors for secure, reliable fitment across common injector types used in gasoline engines.

Safe, Controlled Output
Stable signal output and controlled voltage selection help reduce the risk of damaging injectors during activation testing.


Typical Use Cases

  • Diagnose injector clogging, sticking, leakage, or weak response
  • Verify injector performance before installation
  • Compare two injectors side-by-side for consistency
  • Confirm injector cleaning results with repeatable pulse cycles
  • Simulate ECU control using custom PWM signal settings

Specifications

Output Voltage: 5V / 12V selectable
Signal Type: Custom PWM pulse signal + standard pulse modes
Test Count: Adjustable activation cycles
Display: LED digital display
Application: Fuel injector activation and diagnostic testing
Compatibility: Most gasoline fuel injectors with supported connectors


Package Includes

1 × OBDResource Fuel Injector Tester Unit
Injector Adapter Connector Set
User Instructions

PRODUCT OWNERSHIP

Resources & Support

Find product documentation, available updates and technical help.

  • 5 stars: 9 (69%)
  • 4 stars: 3 (23%)
  • 3 stars: 1 (8%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
P
Paguy82
Exactly what I was looking for

This tester worked very well. Extremely simple to hook up. Price is very reasonable. Welcomed addition to my garage. No brainer if you have fuel injected vehicles that you have to diagnose for issues or just to ensure everything is working as it should.

S
Sarah
Toller Artikel

Das Gerät verfügt über ein hochauflösendes Display,das die Testergebnisse klar und deutlich anzeigt.zuverlässiges Werkzeug für die Diagnose und Wartung von Einspritzdüsen

R
Review 8672
Very Helpful Tool but Not Perfect

This was a helpful tool to compare each injectors performance. You can test each injector the same amount of pulses and time and check the volume of fuel for each injector. It's fairly easy to use even without the manual. I do wish is was possible to turn off the beep. The beeper on mine was failing and emitting a terrible changing tone which was just annoying. For the quality of this tool, if it's priced under $40 it's a decent value for the money.

T
Traderjo1930_
Besser als nix - naja... etwas besser

Nicht geeignet für TSI-Benziner, da die Stromabgabe nicht ausreichend ist. Für einen einzelnen Impuls (wirklich >1<) ist er ok. Um ein Kraftstoff-Sprühbild zu bekommen, braucht man einen schwazen Hintergrund und gute Beleuchtung. Dann kann man zumindest erkennen welche der Injektoren tropft/leckt oder nicht gut verteilt. Besser als nix.

T
Thomas
Nicht für alle Einspritzventile geeignet

Ein grundsätzlich gutes Gerät mit fünf Einstellmöglichkeiten, wobei vor allem der fünfte Modus komplett frei einstellbar ist – das fand ich besonders praktisch.Die Bedienungsanleitung ist nur auf Englisch verfügbar und enthält ein paar kleine, aber nicht störende Tippfehler – zum Beispiel steht da einmal „tset“ statt „test“.Die Bedienung ist insgesamt sehr einfach, das Gerät liegt gut in der Hand und kann zwei Injektoren gleichzeitig ansteuern. Auch die Kabellängen sind gut gewählt – länger müssten sie meiner Meinung nach wirklich nicht sein, und kürzer sollten sie auf keinen Fall sein. So wie sie sind, passt es genau.Ein Nachteil ist allerdings, dass die fest verbauten Injektorstecker nicht mit allen Einspritzventilen kompatibel sind. Zwar wird dadurch ein Verpolen verhindert, aber weil keine losen Kabel mit kleinen AMP-Steckern verwendet wurden, sondern feste Stecker, lassen sich bestimmte Injektoren – wie z.B. die von Mercedes mit den M272-Motoren (C350, E350, ML350 usw.) – nicht direkt anschließen. Das lässt sich zwar mit selbstgebauten Adapterkabeln lösen, ist aber eben ein zusätzlicher Aufwand.Injektoren wie sie zum Beispiel bei den EW10J4-Motoren von Peugeot, Fiat oder Citroën (2.0 Liter, 16 Ventile) verbaut sind, ließen sich hingegen problemlos testen.Ich gebe dem Gerät 4 von 5 Sternen. Es funktioniert zuverlässig, ist gut durchdacht und gebaut. Die festen Stecker stellen sicher, dass keine Verpolung passiert, allerdings ist die Kompatibilität damit eingeschränkt, weshalb man bei Bedarf selbst Adapterkabel basteln und verwenden muss.

K
Ken
Cheap decent tool that improves the cleaning and testing of injectors

Arrives in a brown box as shown in the video.The device itself seems to be built decently. Good enough for what it will be doing.Before, I would use a 9V battery to pulse injectors. With this tool it will make the whole process extremely easy and less hassle. This set comes with everything you need to clean injectors or test.Some upgrades would be to also include an ac adapter instead of just the battery clamps. Or even have an option for batteries which would make this tool more convenient.For about $46 before 15% coupon, this is a good tool to avoid the pains of using whatever is around the house like a 9V battery.

L
LP
Belle qualité. Fonctionne parfaitement.

Bonne conception et très complet. Très facile d'emploi.

A
Amazon Customer
Decent tool

Decent hand held injector pulsing tool, does what you expect.

E
Eye Guy
Nice fuel injector tester

This is a nice fuel injector tester. It allows you to choose between 12 V and 5 V models so choose wisely so you don’t burn out your 5V injector with a 12V pulse. Anyways, what you do as you turn on the fuel pump while you have a fuel pressure gauge attached. You pressurize the system to unknown value, and then you run the injector through a series of pulses and watch the pressure go down. You test all injectors in the engine, the same way. If you have a clogged injector, then it won’t drop the pressure like the other injectors will. If you have a leaky injector, it won’t hold the pressure (but this item won’t tell you if you have a leaking injector because you don’t know which one is leaking). You can probably test direct injection fuel injector similarly, but I am not sure how to do that because most direct injection systems need to have the engine running to build fuel pressure on the fuel rail. Perhaps someone smarter than me can chime in.

J
Jay C
Where has this been all my life!

I remember the days when you had to send injectors out to a shop to be put in a machine for cleaning and flowing. Granted for motorsport situations that's probably still a good idea so you can be sure your injectors are matched for flow rate. BUT, for the rest of us!...This is the best thing since sliced bread!I used to do the ghetto version and use a power supply to open the injector, spray the neck with carb cleaner and blow it out with the compressor. It kinda worked but was a PITA more than anything.This unit - if you didn't know - lets you plug the injector in, open it and has an snug fitting adapter for the top so you can spray a sealed off can of carb cleaner through the injector and clear it out. Super easy to use, very functional. This unit in particular has decent build quality and for the money you couldn't find a better value. It would cost you more than the price of this unit just to send out a few injectors to be cleaned.I don't think I would use this in a shop all day every day. But for the casual mechanic and home gamer it's great. Maybe I'm wrong, and it would live a long life in a pro setting but who knows for sure these days.

G
Grandpa
Great item to have in your toolbox if you work on fuel injected engines

I did not know these were available until I began searching for ways to clean the injectors while I had the intake manifold off the car. Great concept to ensure any internal blockages are purged. Without this tool, I had planned to use my ultrasonic cleaner. This device works well, but is a bit inconvenient having to be near your car battery. To remedy this, I ended up using a 12V power tool battery and adapter so I could clean the injectors on my workbench. Worked well and did not take long to see the spray cleaner exit the injector tip in a nice atomized spray pattern. This tool has 10 different pulse settings to help clean your injectors. I read a caution not to have power the injectors on continuously for longer than 10 seconds.

W
Wayne
Stop Buying Fuel Injectors

This is a very simple easy way to clean fuel injectors to get back that nice fine atomized symmetrical spray pattern. Just get a can of carburetor cleaner, plug up the cleaner to 12 volts and set the mode for your type of injector and in a few seconds the injector is working great. Everything that you need to clean two injectors at a time.

M
MTV
Excellent unit

This digital fuel injector tester is a pretty handy tool if you’re working on fuel system diagnostics.Right out of the box, it feels solid, and the LED display is bright and easy to read. The buttons are straightforward, and navigating through the 10 test modes is simple. There is no guesswork needed.In use, it does exactly what it’s supposed to do. You can cycle the injectors through different pulse widths and frequencies, which is great for checking spray patterns and potential clogging issues. I like that it has multiple modes, giving you flexibility depending on what you’re trying to diagnose. It also lets you manually pulse the injectors, which is helpful for deeper testing.Overall, it’s a solid tool for the price, especially if you do a lot of injector work. It’s easy to use, gives clear results, and makes diagnosing injector issues a lot faster.