Presented by SMP, Duration approx. 3 hours. This course will be presented in Spanish,
This course prepares technicians to streamline their diagnosis of fuel control related problems through an understanding of systems operation and the application of data and diagnostic functions. The next vehicle you diagnose might be equipped with an Air/Fuel or Lambda sensor. These sensors have complicated the diagnosis of fuel trim DTC and reduced power concerns. Our familiar scan data such as g/s for a mass air flow sensor, short term and long term for fuel trim, 0-1 volt for O2 sensors have been replaced with terms like kg/hr, equivalence ratio, milliamps, or strange voltages that don’t make sense.
o Describe the difference and operation of speed density and MAF systems
o Explain short- and long-term fuel control
o Analyze scan data to determine proper engine breathing
o Explain the basic operation air fuel ratio sensors
o Analyze fuel control under various operating conditions