How do I know if the the fuel pump is bad or a faulty fuel relay

1999 MAZDA 626
104,000 MILES
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PROBBINS
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  • 1 POST
I dropped my son off at school as I was pulling,out the car off.what can I ?do to test the fuel pump, spray starter fluid in the intake?
May 24, 2012 at 5:55 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
By testing for power arriving at the pump while monitoring the fuel pressure using a gauge.
May 24, 2012 at 6:01 AM
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