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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