NASTF is a cooperative effort among the automotive service industry, the equipment and tool industry and OEMs to ensure that independent automotive service professionals have the information, training, and tools needed to properly diagnose and repair today’s high tech vehicles. Corporate Partner

2012 Mazda 3 2.0 - Fuel Pump Current Pattern - Source of Intermittent Crank, No-start

Scott Manager Claremont, California Posted   Edited  
Resource
Driveability
2012 Mazda 3 i 2.0L (7) 5-spd (FS5A-EL)
Intermittent Crank No-Start
Picoscope
Waveform
Fuel Pump

This vehicle had been bouncing around repair shops trying to solve an intermittent crank no-start condition. We have since replaced the pump and the problem has been resolved. Here is the image from the defective fuel pump waveform.

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NASTF is a cooperative effort among the automotive service industry, the equipment and tool industry and OEMs to ensure that independent automotive service professionals have the information, training, and tools needed to properly diagnose and repair today’s high tech vehicles. Corporate Partner