No power to fuel pump

Tiny
VCFLORES60
  • 2003 MITSUBISHI ECLIPSE

Electrical problem 4 cyl Two Wheel Drive Manual

The engine was fine before the fuel pump locked up. After I removed the fuel pump, I tested the old pump to make sure that it was the problem. I checked it by connecting it to 12 volts and the pump would not operate-all it would do was click. Now-the new pump will not (run)operate. I tested the new fuel pump to make sure that it was good by applying it directly to 12 volts and it does run. But, when the pump is connected to the wiring harness, it does not work. I checked for power at the fuel pump connections-no voltage whatsoever. Checked all fuses in the engine compartment-they're ok. Checked all fuses in the passenger compartment-they're ok. I started checking the relays-but I was unable to identify the fuel pump relay nor the ASD relay. No wiring schematic is available-so I need help please!

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Saturday, October 16th, 2010 AT 8:39 PM

5 Replies

Tiny
2CARPROS KEN
  • ADMIN
  • 12,184 POSTS

Hello,

This sounds like it can be the fuel pump relay or the MFI relay I have found all of the engine and fuel pump wiring diagram along with the fuse panel and relay locations. Here are a couple of giuse for you to go over and then down to the diagrams.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below)

Please run this test and get back to us.

Cheers, Ken

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Sunday, December 3rd, 2017 AT 7:00 PM
Tiny
TINAWOODARD
  • 2001 MITSUBISHI ECLIPSE
  • 1.9L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES

Seems fuel or power not getting to fuel pump or fuel pump relay.

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Sunday, December 3rd, 2017 AT 7:01 PM (Merged)
Tiny
WRENCHTECH
  • EXPERT
  • 20,946 POSTS

Seems like? What have you actually tested?

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Sunday, December 3rd, 2017 AT 7:01 PM (Merged)
Tiny
MARKDOGGY
  • 2002 MITSUBISHI ECLIPSE

I need a little help I need to know where the fuse(fuses?) And relays are for the fuel pump on a 2002 mitsu eclipse v6 auto.

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Sunday, December 3rd, 2017 AT 7:01 PM (Merged)
Tiny
DRCRANKNWRENCH
  • EXPERT
  • 3,440 POSTS

The fuse panel for the interior panel is at the end of the dash on the driver's side. There is another fuse box in the engine compartment on the driver's side.
The relay for the fuel pump is in the same area as the fuse panel inside the car at the end of the dash on the driver's side. I am including a diagram of the location and some descriptions of what else is there.

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Sunday, December 3rd, 2017 AT 7:01 PM (Merged)

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