allsun Fuel Injector Tester Kit EM276SET — 12V DIY Injector Pulse Cleaner with 8 Modes & Adapters

The allsun EM276SET is a 12V-powered DIY fuel injector tester and adapter kit that lets you individually pulse, diagnose and clean gasoline engine injectors without removing them from the vehicle.

This compact kit combines a multi-mode pulse generator, two injector adapters and a storage bag to help hobbyists and technicians identify stuck, leaking or non-firing injectors. Designed for gasoline engines with electronic fuel injection, the EM276SET works alongside any fuel pressure tester and is powered directly from the vehicle’s 12V battery. The unit features an easy-to-read LED screen, eight pulse settings and four pulse output types to match common injector behaviours.

How does the EM276SET help diagnose injector problems?

The tester fires individual injectors on demand so you can observe each injector’s spray pattern, listen for consistent clicks and monitor fuel pressure changes while the engine is off. By isolating injectors, you can pinpoint failures such as electrical faults, clogged nozzles or internal leakage without swapping parts indiscriminately.

• Eight pulse modes to simulate different injector operating conditions
• Four pulse output types: short, medium, long and continuous
• Works with any fuel pressure gauge for correlated readings
• Individual injector operation for targeted diagnostics

Can I use this kit to clean sticky or gummed-up injectors?

The EM276SET is designed to assist DIY cleaning by repeatedly pulsing injectors while cleaning solvent circulates, helping dislodge varnish and deposits from the nozzle. It’s effective as part of a manual cleaning routine, especially when used in conjunction with a proper cleaning fluid and a closed-loop pressure setup.

• 12V vehicle battery power ensures sufficient voltage to fire clogged injectors
• Pulsing modes help break up build-up during solvent flushing
• Long, heat-resistant silicone leads for reliable connections during cleaning
• Includes adapters and storage bag for convenient kit use

What safety and compatibility points should I know before using it?

Follow on-device warnings: never smoke or use open flames near fuel, avoid shorting battery terminals, and use eye and face protection during cleaning. This kit is intended for gasoline engines with electronic fuel injection and is not suitable for diesel systems.

• Only for gasoline engines; do not use on diesel injectors
• Requires a full 12V supply from the vehicle battery—do not use 9V batteries
• Wear personal protective equipment and keep ignition sources away
• Use pulse timer optionally with a fuel pressure gauge for safe checks

What’s included and how portable is the set?

The EM276SET ships with the pulse tester unit, a pair of injector adapters, a compact storage bag and an English manual—everything needed for on-car diagnostics and cleaning. The long silicone leads and compact controller fit easily into a toolbox or vehicle trunk for mobile troubleshooting.

• 1 × EM276 fuel injector tester unit
• 1 pair of injector adapters (4.33 × 1.06 inches)
• 1 × storage bag and 1 × English manual
• Durable silicone test leads, approximately 41.5 cm (16.3 in) length

Who this is for: the allsun EM276SET is aimed at DIY mechanics, home garage enthusiasts and professional technicians who need a portable, reliable way to check and assist cleaning of gasoline fuel injectors. If you work on petrol vehicles and want to diagnose injector faults or support manual cleaning procedures without expensive shop equipment, this kit is a practical, value-focused option.