CMTOOL Fuel Injector Tester and Cleaner Kit — 6 Adapters, 8 Pulse Modes, 5V/12V Dual-Voltage

The CMTOOL Fuel Injector Tester and Cleaner Tool Kit is a portable diagnostic and cleaning unit that delivers selectable pulse patterns and voltages to test or pulse-clean gasoline injectors using six adapter sizes.

This compact unit combines multi-size fittings, switchable pulse modes, and dual-voltage drive to evaluate injector spray patterns, detect electrical faults, and support DIY cleaning without removing every injector from the engine. Designed to work with a 12V vehicle battery or a DC 12V adapter, the kit supports a wide range of gasoline injector types (EFI, GDI, MPFI, FSI, TBI, coil-type direct and many motorcycle injectors) and includes protective circuitry to reduce user error risks.

How does the CMTOOL tester check injector performance?

The tester outputs controlled pulse signals to open injectors while you observe spray behavior, listen for clicking, or measure current and resistance. Four pulse patterns combined with two voltage drive levels give repeatable, adjustable stimulation so you can compare flow and response under different conditions.

• Eight pulse modes: short, medium, long, and continuous, each at high (12V) or low (5V) drive.
• LCD shows selected mode and indicator lights flash during output for visual confirmation.
• Two independent output pairs let you test two injectors simultaneously to compare side-by-side.
• Works with fuel pressure gauges for comprehensive diagnostics.

Can I use the kit to clean clogged injectors?

The device provides pulsed electrical drive to actuate injectors during a wet or dry cleaning procedure, helping dislodge deposits when combined with an appropriate cleaning fluid and external pressurization. Note the kit does not include cleaning solution or a power adapter; it provides the pulsed control and adapters that make targeted cleaning practical.

• Six adapter sizes fit most gasoline injector ports for sealing during cleaning cycles.
• Pulsed output mimics engine signals to open injectors for fluid flushing.
• Use with a separate pressure source and cleaning solvent for best results.
• Not compatible with diesel injectors — designed only for gasoline systems.

What safety and compatibility features protect the tester and vehicle?

The CMTOOL unit includes reverse polarity and short-circuit protection to prevent damage if clamps or outputs are connected incorrectly. Silicone-insulated leads resist temperature extremes, and the device avoids operation if outputs are shorted, helping keep both the tool and the injector safe during testing.

• Reverse polarity protection prevents current flow when battery clamps are reversed.
• Short-circuit detection disables output if leads are bridged.
• High-quality silicone leads: test leads 47 cm, power cord 85 cm for reach and durability.
• Recommended DC 12V adapter at least 1.5A if not using vehicle battery.

Who is this for: The CMTOOL Fuel Injector Tester and Cleaner Kit fits DIY mechanics, home garage technicians, and professional shops that need a compact, adapter-rich fixture for injector diagnosis and maintenance. It’s ideal for anyone servicing gasoline engines who wants repeatable pulse control, multi-adapter coverage for varied injector types, and built-in safeguards to reduce hookup mistakes. If you plan to perform cleaning, pair the kit with a suitable cleaning agent and pressure source; for electrical checks it also pairs well with multimeters and fuel pressure gauges.