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1995 Mazda 626 2.0 4cyl

Tiny
BUTTER1991
  • MEMBER
  • 1995 MAZDA 626
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
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.
Saturday, May 21st, 2011 AT 5:57 AM

3 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
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
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Saturday, May 21st, 2011 AT 12:10 PM
Tiny
BUTTER1991
  • MEMBER
  • 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.
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Saturday, May 21st, 2011 AT 6:16 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
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
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Monday, May 23rd, 2011 AT 1:32 PM

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