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Professional Fuel Injector Diagnostic Tester

E04-039 Injector Tester 4 Pluse Modes Powerful Fuel System Scan Tool,  Can help analyze injector issues, you can utilize it to test every injector independently to help distinguish stuck, spilling, or wore out conditions

Injector Tester has 4 pulse modes and in the continuous working mode (mode 4), it can help you identify the injector good or not when you switch off the engine.

Fuel Injector tester can be work together with any fuel pressure tester; Please NOTE: Gasoline car only, NOT the diesel engine.


  • This injector tester with 41.5cm/ 16.3 inches test lead can work with any fuel pressure tester. Please NOTE: Gasoline car only, NOT the diesel engine

  • 4 MODES - Large LED display with 4 pulse modes- Short/ Medium/ Long/ Continuous modes help to identify good or bad injector.
    • Mode 1: The tester outputs 1 pulse with a pulse width of approximately 250ms.
    • Mode 2: The tester outputs 50 pulses with a pulse width of approximately 7 ms per pulse.
    • Mode 3: The tester outputs 100 pulses with a pulse width of approximately 3.5 ms per pulse.
    • Mode 4: The tester continuously outputs pulses at a rate of approximately 50 pulses per approximately 1450 ms.
      The pulse width of each pulse is about 7ms.

  • DIAGNOSE INJECTOR PROBLEMS - you can use it to test each injector individually to help identifing stuck, leaking or burnt-out conditions. It works with engine off and pulse timer may be used with fuel pressure gauge.

  • MODE LOCK FEATURE- The mode lock feature ensures test condition uniformity.
  • RELIABLE- With CE Marking, it complies with all essential health and safety requirements set out in European Directives


  • Power: 12V car battery
  • Operating environment: 0℃ - 40℃, relative humidity <80%
  • Storage environment: -10℃ - 50℃, relative humidity <85%
  • Size: about 147x82x59mm (only for the main body)

fuel injector


  • 1 x EM276 tester 
  • 1 x Instruction manual
  • 1 x Storage bag

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