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Fuel Pump Solution - All Failure Modes

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Old 06-19-2009, 04:27 PM
  #51  
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Great write up with pictures and visual descriptions MM...

I've been dealing with a mysterious problem that I've been trying to diagnose for a while now. I've narrowed it down to the fuel pump and after reading up on this thread I wonder if this is the problem I'm experiencing. Symptoms are after long highway drive, I seemingly lose throttle and sometimes the car won't even start. But after an hour or more of sitting, it will fire up and run like normal until the next time it decides to fail on me again (no CEL codes).

I was planning on ordering a 09 pump, but seems like this may be the better route (and cheaper). Though I was curious, being that I'm not using any type of force induction, will the added fuel flow increase pressure in the fuel rails to a point where I'll be running in a rich state or is the FPR able to compensate for the added pressure?

Thanks in advance!
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Old 06-19-2009, 05:30 PM
  #52  
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What is the part number on the Walbro fuel pump that fits our assembly? Summit also has a bunch of 255l hp in tank fuel pumps.

I'm definitely up for this since I just started getting really bad fuel starve 2 weeks ago at an autox event and need to fix it before I'll race again.

Here are the various in-tank electric 255L fuel pumps from Summit Racing.com



Fuel Pump, Electric, In-Tank, 255 lph, Ford 1985-97, Mustang, 4.6, 5.0L, Each
Part Number: VPN-GCA719-2
* $119.95

Fuel Pump, Electric, In-Tank, 255 lph, Chevy 1985-92, Camaro, Each
Part Number: VPN-GCA758-2
* $124.95


Walbro GSS340 - Walbro Electric In-Tank Fuel Pumps
Part Number: VPN-GSS340
$99.39

Walbro GSS342 - Walbro Electric In-Tank Fuel Pumps
Part Number: VPN-GSS342
* $89.95

Walbro GSS341 - Walbro Electric In-Tank Fuel Pumps
255LPH PUMP
Part Number: VPN-GSS34
$99.95
Last edited by shaunv74; 06-19-2009 at 05:34 PM.
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Old 06-19-2009, 08:13 PM
  #53  
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^I've already asked, we'll see if Jeef answers this time
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Old 06-19-2009, 09:09 PM
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great thread. I knew Jeff had something up his sleeve

once there's consensus on the correct part, I'll buy it, and see if it fixes my lean 6k+ rpm afrs.
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Old 06-19-2009, 09:28 PM
  #55  
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Originally Posted by mysql101
great thread. I knew Jeff had something up his sleeve

once there's consensus on the correct part, I'll buy it, and see if it fixes my lean 6k+ rpm afrs.
o_O arent you NA right now ? current pump dieing ?
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Old 06-21-2009, 09:05 AM
  #56  
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Pumps ! I want pumps !
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Old 06-22-2009, 02:31 AM
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^Do you know the secret model number of said pump?

This is the best I've found and I'm 99% sure it's the right pump and it's from a reputable site: http://www.maperformance.com/walbro-...o-wrx-sti.html
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Old 06-22-2009, 04:14 AM
  #58  
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Originally Posted by MazdaManiac
Denso actually makes a drop-in replacement for the 04 - 08 pump.
I'll post a pic in the first post of this thread.
More details please!
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Old 06-22-2009, 04:37 AM
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Originally Posted by MazdaManiac
Denso actually makes a drop-in replacement for the 04 - 08 pump.
I'll post a pic in the first post of this thread.
Waiting for details. It's not listed on their website.
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Old 06-22-2009, 10:37 AM
  #60  
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Originally Posted by chickenwafer
^Do you know the secret model number of said pump?

This is the best I've found and I'm 99% sure it's the right pump and it's from a reputable site: http://www.maperformance.com/walbro-...o-wrx-sti.html
Originally Posted by MazdaManiac
There is a Walbro 255 lph upgrade for the Evo IX that is, allegedly, a drop in replacement for that car (making it a drop-in replacement on ours as well) and can be had for about $80 online.
I have yet to verify this, though.
you might be on the right track here wafer. But Jeff has yet to give more info.
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Old 06-22-2009, 12:21 PM
  #61  
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Originally Posted by Charles R. Hill
I am glad to see BHR is still beating Summit on prices.
Are you saying you can sell us the right pump?
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Old 06-22-2009, 02:17 PM
  #62  
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Originally Posted by chickenwafer
^Do you know the secret model number of said pump?

This is the best I've found and I'm 99% sure it's the right pump and it's from a reputable site: http://www.maperformance.com/walbro-...o-wrx-sti.html
Gee Dave, thanks for checking with your local vendor to see what our prices are AND to make sure you get the right pump (which isn't the one you posted).
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Old 06-22-2009, 04:29 PM
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Originally Posted by Flashwing
Gee Dave, thanks for checking with your local vendor to see what our prices are AND to make sure you get the right pump (which isn't the one you posted).
Geez Todd, I asked multiple times and no one is providing the secret squrriel part number. What the hell am I supposed to do? I Google

In the post you quoted me on I even asked Ray directly if he knew the part number. No responce- so yes, I did ask.
Last edited by chickenwafer; 06-22-2009 at 04:32 PM.
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Old 06-22-2009, 04:30 PM
  #64  
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I am reminded of a certain Dwell setting .....
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Old 06-22-2009, 04:33 PM
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I think its called covering ones *** ^_^, so they can see if it works first before telling everyone and everyone blaming them for something screwing up.
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Old 06-22-2009, 04:38 PM
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Originally Posted by Charles R. Hill
How's about this; I am saying that we will probably be "testing and proving" a few of these proposed solutions offered by my contemporaries over the next several days and let you guys know how it all works out.

Aside from that, I am a Walbro dealer but we all know that Walbro pumps suck, don't we?

Brettus didn't you read this?
It should remind you of the word "test"indeed, doesn't it sound good? i know we aren't used to tests but seriously i wouldn't like a crappy pump to stop pushing fuel after a replacement because the seller didn't sell me the best item available

Let's be patient, you (and i) all lived with the stock pump for a while so why should you be all in a hurry? I trust Charles, Jeff, Todd and Erick.. just giv'em the right time!
In the end they never let us down with products and tests, always backing up their opinions in a good way. I'm sure that the wait will be worth it!
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Old 06-22-2009, 04:45 PM
  #67  
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Well since Todd (an employee of BHR) told me to check with you on the PN and the price, what is it, Ray? Or was Todd just blowing smoke? I'm really curious now.
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Old 06-22-2009, 04:57 PM
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No trappings, I just didn't like how Todd was trying to call me out when I thought I already asked you?

I just thought the comment was uncalled for and rude considering I already asked multiple times. That's all
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Old 06-22-2009, 05:04 PM
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Nope, none towards you at all vanilla face

You know you're my bro
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Old 06-22-2009, 05:07 PM
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Originally Posted by Charles R. Hill
I would prefer to be henceforth known as "FatFace Killa".
You know your the BWG....
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Old 06-22-2009, 05:09 PM
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rolfsauce!
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Old 06-22-2009, 05:14 PM
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Bald White Guy....

der!!!!!
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Old 06-22-2009, 05:48 PM
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Yeah - I am the FBWG....
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Old 06-22-2009, 05:56 PM
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Originally Posted by Charles R. Hill
Dare I ask.........

BTW, CRH will be mad-busy in the near future...........;

2
Sigh... you are terrible at this game; Fat Bald White Guy....


I sent you an interesting PM; and ironically my wife thought it was a good idea; doesn't mean it is - but it means I won't get yelled at if I spend the money.... hit me up FOO!
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Old 06-22-2009, 06:02 PM
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Originally Posted by Kane
Sigh... you are terrible at this game; Fat Bald White Guy....


I sent you an interesting PM; and ironically my wife thought it was a good idea; doesn't mean it is - but it means I won't get yelled at if I spend the money.... hit me up FOO!
Since women apparently share the same firmware version, could your wife tell my mother that upgrading to another LSD is a good idea?
Or i will have to run naked again, as said in that for sale thread
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