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The EM-250-2A Electronic Programmable Fault Box for ECM and HVAC is designed to allow remote system fault insertion into the GM ECOTEC 2.2L engine bench. This product comes standard with computer software that allows remote control of the fault box from a laptop or desktop computer.  The fault box can also be controlled at the fault box installed on the engine bench.  The fault box comes equipped with a lockable door.


Educational Advantages:

  • Allows the insertion or removal of component and/or system faults without having to replace or disconnect components
  • Engine systems and components respond to inserted faults with real-world operating symptoms, OEM DTC’s, and scan tool operation
  • Provides student learning opportunities for diagnostic skills without the need of an entire vehicle
  • Multiple NATEF tasks in the Engine Repair, Electrical and Engine Performance areas can be accomplished using this product
  • Intermittent faults can be inserted with individual adjustments for fault duration and duty cycle


  • 16 Engine faults dealing with sensors, components and wiring
  • Software to allow control of the fault box from a remote computer
  • Intermittent fault conditions of all 16 programmed faults
  • Lockable door cover
  • USB receptacle for remote hookup
  • Eight faults controlling open circuits in components and sensors
  • Eight faults with variable adjustments of voltage and/or conditions
  • Any number of faults can be inserted at the same time


  • 2007 and newer Chevrolet Cobalt or Pontiac G5 with VIN (vehicle identification number) included

Fault List:

  • ECT - Engine Coolant Temperature sensor (variable voltage adjustment)
  • IAT - Intake Air Temperature sensor (variable voltage adjustment)
  • MAP - Manifold Absolute Pressure sensor (variable voltage adjustment)
  • MAF - Manifold Absolute Pressure sensor (variable voltage adjustment)
  • HO2S 1 - Heated Oxygen Sensor Bank 1 (variable voltage adjustment)
  • HO2S 2 - Heated Oxygen Sensor Bank 2 (variable voltage adjustment)
  • INJ - Fuel Injector (open circuit)
  • FP - Fuel Pump Relay (open circuit)
  • CKP - Crankshaft Po sition Sensor (open circuit)
  • CMP - Camshaft Position Sensor (open circuit)
  • TP - Throttle Position sensor (open circuit)
  • EVAP - Evaporative Emission Canister Purge Solenoid (signal can be opened)

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The instructors here are very impressed with the craftsmanship of the units that were purchased. We just wanted you to know how pleased they are with the simulators, and will definitely recommend your company to others.

Brian Madlem & Deborah Bowling, Lakeland Community College


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Consulab manufactures educational training materials adapted to meet the needs of technical and vocational schools in the fields of transportation technology electrical engineering.

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