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Old 05-17-2004, 08:30 PM   #1
Mariano
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Member#: 56
Join Date: Jun 1999
Chapter/Region: PRSIC
Location: Guaynabo, Puerto Rico
Vehicle:
1999 RS-T (Stage V)
2005 LGT LTD

Angry Fuel Pump Dead??? PLEASE HELP!!!!

OK... I already did searches on key words: fuel-pump-fuse-relay-etc... I checked all SBFs and they're good; checked under the driver's side dash but could find the supposed 3 relays/fuses.

There's no humming sound coming from the Walbro pump. Fuel pressure is 0 at the fuel gauge.

Could it be that the pump (2 years old) is DEAD???

I am FREAKIN' OUT...

PLEASE HELP!!!

saludos

Mariano
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Last edited by Mariano; 05-18-2004 at 01:37 AM.
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Old 05-17-2004, 10:07 PM   #2
kastle
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Steel Blue Mica

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You have been around long enough to know the rules....


http://www.nasioc.com/Default.cfm?Action=Rules
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Old 05-18-2004, 01:40 AM   #3
Mariano
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2005 LGT LTD

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I really dont get it?
What's wrong with this post?

Quote:
Originally posted by kastle
You have been around long enough to know the rules....


http://www.nasioc.com/Default.cfm?Action=Rules
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Old 05-18-2004, 10:57 AM   #4
kastle
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Steel Blue Mica

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Quote:
Fuel Pump Dead??? PLEASE HELP!!!!

Your title. I edited it.
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Old 05-18-2004, 11:05 AM   #5
Mariano
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Location: Guaynabo, Puerto Rico
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1999 RS-T (Stage V)
2005 LGT LTD

Talking

Sorry! My bad...

...Now can anyone help me! Bueller, Bueller, Bueller.

Mariano
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Old 05-18-2004, 12:36 PM   #6
Drac9
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1999 2.35 RS-T w/NOS
Hybrid Rally Blue Pearl

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This is easy to test. Pull the fuel line of the fuel rail and stock it in a bottle. Turn the key to on and the pump should prime- see if you get gas in the bottle. If you do then the pump is working if you dont then the pump is dead. Next check the electrical connections back by the pump.
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Old 05-18-2004, 01:58 PM   #7
Mariano
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Location: Guaynabo, Puerto Rico
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1999 RS-T (Stage V)
2005 LGT LTD

Angry UPDATE

I pulled out the fuel pump from the tank. Took off the pump from the fuel delivering system and checked it; IT WORKS.

I figure that the problem is not in the back... somewhere between a blown fuse/relay (which I can't find) and a broken wire?

Guys come on I know a couple of you had this same problem. Please give me some BRIGTHER LIGHT on this matter... Any other specific posibilities...

saludos,

Mariano
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Old 05-18-2004, 07:08 PM   #8
Mariano
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Location: Guaynabo, Puerto Rico
Vehicle:
1999 RS-T (Stage V)
2005 LGT LTD

Angry Afternoon UPDATE

Found two round relays close to the inside fuse box, which according to the "service manual", these are the fuel pump relay(s). One with a pink connector and one with a light blue connector. Changed them with brand new ones and..... NOPE! no humming sound from the pump...

I even got an amp/volt meter and I found something unusual. The plug/connector of the fuel pump has 6 pins. Power was being delivered to only two, which in theory are 3 positives and 3 negatives. So only one set has power; the gas gauge. When unplugged the gas gauge goes empty; plugged 3/4 tank where it should be.

I think I'm starting to loose my mind & patience...

Could SOMEONE PLEASE solve the mystery....

Mariano
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Old 05-19-2004, 11:28 AM   #9
Elliot
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Titanium silver

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try connecting your stock pump to see if it works

Elliot
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Old 05-25-2004, 09:21 PM   #10
Mariano
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1999 RS-T (Stage V)
2005 LGT LTD

Talking

FIXED!

Details? ... A BROKEN WIRE!!!

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Old 05-25-2004, 11:26 PM   #11
Aphex
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'05 Legacy GT
Silver

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DOH! where was the wire broken at? and any theories as to how it was broken?
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Old 09-23-2005, 10:43 PM   #12
AntiochCali
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on a heatbreaker dyno

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Help, I have this problem now - can't find a bad fuse - 2003 WRX. Which wire was broken?
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Old 09-26-2005, 11:35 AM   #13
AntiochCali
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on a heatbreaker dyno

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Okay, the problem was the ground bolt on the engine was loose...ugh, this took forever to find, but it's really important.
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