1995 mazda 626 2.0 4cyl

1995 MAZDA 626
100,000 MILES • 4 CYL • 2WD • AUTOMATIC
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BUTTER1991
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  • 5 POSTS
1995 mazda 626 2.0 mfi dohc 4cyl
replace fuel pump and relay fuse for fuel pump, pump still will not come on when key is turned on. could the problem be in computer.
May 21, 2011 at 5:57 AM
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BMRFIXIT
  • ✓ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
Check for power at the blu/wht wire with key 1st on and or engine cranking if have battery volts check and suspect bad ground
Check black wire and G409 connector in rear of cargo bed
If no power at the Blu/Wht wire
Go to the relay and check input and output
May 21, 2011 at 12:10 PM
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BUTTER1991
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  • 5 POSTS
Getting power at the relay, when cranking pump is coming on to get fuel up to the motor could it be a problem with the ECU. so the G409 go's from the ECU to the back at the pump.and this would be the ground.
May 21, 2011 at 6:16 PM
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BMRFIXIT
  • ✓ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
if fuel pump is on and fuel pressure is ok
next is to check for injector pulse
ECU is last to suspect but it is possible
May 23, 2011 at 1:32 PM
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