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Old 04-02-2013, 07:13 AM   #1
TADpole
Scooby Specialist
 
Member#: 32760
Join Date: Feb 2003
Chapter/Region: South East
Location: Charlotte, NC
Vehicle:
2000 2.5RSti FORsale
13' Outback '05 FXT

Default Car quits after high G turn at WOT and won't start!

First, let me start by telling you what car I drive. Here is a full mod list, I know it is more than I need, but here it is anyway.

2000 2.5RS

Engine-

2002 WRX ECU
Cobb AP2
EJ205 WRX Heads from a 2002
Heads are PnP'd and rounded edges in combustion camber
Stock 2002 wrx valves and cams
Stock STi Block and crank
CP 99.5 mm 9:1 Pistons
Manley H/B Rods
ACL Rod Bearings
ACL Main Bearings
Cosworth Valve Springs
Gates Timing Belt
ARP Main Bolts
ARP Head Bolts
Cusco Engine Mounts
TiC Tranny crossmember bushings
18G XT 7cm
DW 650cc injectors
TGV delete
Grimspeed EWG Up-Pipe
Tial 38 mm EWG (.8 bar)
DW300 fuel pump
Grimmspeed EBCS
K&N Intake
Helix Belmouth down-pipe
HKS hi-flow cat-back
TurboXS TMIC
Stock WRX BPV
Gates Alternator Belt
A/C Deleted
Washer Fluid removed
Primitive Racing Skid Plate

Trans-

JDM STi Ver 2 4.11 Transmission
ACT clutch
ACT Prolight flywheel
TiC Shifter Linkage Update
Short shifter
Cusco Tranny Mount

Body-

Shaved engine bay
Wingless trunk with shaved keyhole
V6 JDM lip
JDM rear spats
Foglight covers
Chargespeed grille
Rolled front fenders
Custom front fender spacers
Rolled and flared rear fenders
JDM taillights
Clear corner lights
Clear marker lights
Clear signal lights

Suspension-

KW Clubsport coilovers
GT Works Front Camber Plates
MSI Rear Camber Plates
Whiteline 22mm Front Sway bar
Whiteline Front adjustable end links
WHiteline 22mm Rear Sway bar
Whiteline steering rack bushings
Whiteline roll center adjustment kit
Whiteline anti-lift kit (race)
Kartboy Rear subframe Bolts
Kartboy rear outrigger bushings
Timmins Rear Lateral Links
Timmins box type End links
Timmins Trailing arms

Brakes-

AP Racing Big Brake Kit
Willwood Rear Big Brake Kit
ABS delete
Single stage brake booster
Stainless braided brake hoses

Wheels-

Volk RE-30 17x9 +43 Bronze
245/40/17 Re01r

Interior-

Full cage
Bride Vios low max seats
Impact Racing Harnesses


Now, for the issue I am having. It has now happened twice on the same 270 degree off ramp while on may way to work. I don't actually go to WOT until coming out of the turn. I am in second gear when I power out of the turn and the car pulls great, then I shift the car into 3rd and hit the gas. Nothing. The gas pedal does nothing. Then I try and push the clutch in and the car dies.

Both times the car would not start for at least 30 min. I did install the dw 300 pump fairly recently and I had to run a designated line from the battery to the pump in order to get enough power. I did check the wires that go into the relay, but they seem to be fine. During the 30 min, the car would sometimes start and run very rough for a couple seconds and then die again. I could always hear the fuel pump cycle one every time I turned the ignition on. After about 30 min, I can reset the Ecu and then it starts right up and has no issues, even at WOT. And yes, I tried to reset the Ecu right after it happened but that didn't fix it then.

I know that some airplanes have issues with vapor lock. Then outside temp doesn't seem to be hot enough for that and with a dw300 pump, that should not be an issue. But the symptoms seem to match that. Any ideas?

Mods please move if I am in the wrong section. And sorry if this doesn't make sense, I just finished working all night and haven't slept yet.
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Old 04-02-2013, 09:26 AM   #2
Aaron'z 2.5RS
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Member#: 1026
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Hickigan
Vehicle:
'00 RS/WRX Stg5
'98 RS Stock

Default

Sounds like typical early model fuel starvation... how full is the tank?

Usually its a problem below 1/4 tank..

How many times did you cycle the key after it happened?
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Old 04-02-2013, 10:40 AM   #3
TADpole
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Member#: 32760
Join Date: Feb 2003
Chapter/Region: South East
Location: Charlotte, NC
Vehicle:
2000 2.5RSti FORsale
13' Outback '05 FXT

Default

I know that the second time had about 1/3 tank of fuel. I don't know how much there was the first time.

I also cycled the key on and off a lot before starting. Just like I did when I installed the new fuel pump.

So maybe it is fuel starvation and then there is an air pocket stuck in the line that won't come out? The car quitting makes sense, but it not starting until it sits for a while doesn't? It seems to be more of a time passing issue than a cycle the fuel pump X amount of times issue.

Oh, I forgot to mention that I have deleted the charcoal canister. I have wondered if this could be the issue. I did leave all the lines/hoses open underneath the car so the tank can still vent, except I did put a small filter on the largest one.
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Old 04-03-2013, 02:35 AM   #4
Uncle Scotty
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we have an Uncle

Default

there was a d00000d not long ago posted how he cut up a plastic quart oil container and zip tied it to the bottom of the fuel pump assy to stop fuel slosh and starvation...said it worked like a champ

there is no doubt that the next time i have everything out of the trunk and time, im gonna do this stupid simple mod....
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Old 04-03-2013, 10:52 AM   #5
npartist
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Join Date: Oct 2010
Default

I'd check the canister lines, make sure no insects or debris is clogging them up. Sounds like fuel starvation for the cutting out but you are right about that doesn't really make sense for it not starting back up.... perhaps it is air pockets though. Have you tried pressing the fuel pressure test port on the engine to try to purge the air after it starves? Many times fuel injectors have trouble purging air.
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Old 04-06-2013, 03:09 PM   #6
TADpole
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Member#: 32760
Join Date: Feb 2003
Chapter/Region: South East
Location: Charlotte, NC
Vehicle:
2000 2.5RSti FORsale
13' Outback '05 FXT

Default

Soooo, it happened again today at half a tank of gas on the same corner. And yesterday aeromotive rails and all new fuel lines were installed. Along with an Aeromotive fuel pressure regulator. Still have the same injectors and pump though. I will have to take the pump back out at some point to check everything in the tank.

I am running slightly higher fuel pressure with this regulator (45psi) and this time the car started up almost immediately after it happened. Maybe the extra pressure helped? Although, this time I did try and leave the car in gear after it quit to see if I could pop the clutch to get it to start, maybe that helped push some air through as well?
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Old 04-06-2013, 09:39 PM   #7
Aaron'z 2.5RS
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Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Hickigan
Vehicle:
'00 RS/WRX Stg5
'98 RS Stock

Default

Changing the rails and lines doeant do anything for how the pump picks up fuel..
. Put a full tank in the car and try..
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Old 04-07-2013, 12:38 AM   #8
Uncle Scotty
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OK Houston
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Default

also...inspect the assembly where the pump meets the flex lines...it maybe leaking there and/or the sock may be clogged/bad
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Old 10-31-2014, 03:07 PM   #9
AWDWRXLOVER
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02 built hybrid
sr55/meth/sick speed

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My car does this exact same thing. What's the fix?
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Old 10-31-2014, 08:17 PM   #10
Uncle Scotty
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OK Houston
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Default

Quote:
Originally Posted by AWDWRXLOVER View Post
My car does this exact same thing. What's the fix?
read the thread


















again

























and





































again














































until it comes to you....
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Old 10-31-2014, 08:27 PM   #11
AWDWRXLOVER
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sr55/meth/sick speed

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Sorry to burst your bubble but your zip ties and other random guesses arent the fix. DW explained to me what to do, thanks though.
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Old 10-31-2014, 09:11 PM   #12
Mr_Furious
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Join Date: Oct 2011
Location: Vancouver, Canada
Vehicle:
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Blue

Default

I changed my fuel pump a couple months back, I had the same problem with even a half tank of fuel. But I fixed the problem by adding a bag style strainer filter to the intake on the fuel pump. It holds enough fuel that it doesn't starve. And I can drive till I damn near run out of fuel, and still corner really hard. The filter adds an inch or so to the length of the pick up so its awesome. And was only 12 bucks
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Old 10-31-2014, 09:23 PM   #13
Uncle Scotty
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Quote:
Originally Posted by AWDWRXLOVER View Post
Sorry to burst your bubble but your zip ties and other random guesses arent the fix. DW explained to me what to do, thanks though.


there is NO single fix for symptoms of an issue that may be MANY issues

dont get all full of yourself because you pop in and want to be spoon fed a canned 'fix'

THAT is bull****.
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Old 10-31-2014, 09:29 PM   #14
AWDWRXLOVER
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Join Date: Dec 2003
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02 built hybrid
sr55/meth/sick speed

Default

I was hoping the OP would post, but not surprised your still here with your usual helpful input. Glad to see NASIOC hasnt changed after all these years.
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Old 11-07-2014, 01:03 AM   #15
TADpole
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Member#: 32760
Join Date: Feb 2003
Chapter/Region: South East
Location: Charlotte, NC
Vehicle:
2000 2.5RSti FORsale
13' Outback '05 FXT

Default

Sorry it took a bit to get on here. My issue is that the fuel tank does not have a good baffle, so it sucks up an air bubble when all the fuel sloshes around on corners. I haven't had time to fix it, but I just don't get on it at less than half a tank and fill it up then.
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Old 11-07-2014, 02:03 AM   #16
Uncle Scotty
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OK Houston
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Default

Quote:
Originally Posted by AWDWRXLOVER View Post
I was hoping the OP would post, but not surprised your still here with your usual helpful input. Glad to see NASIOC hasnt changed after all these years.
d0000000000000000d


there are a LOT of you who have your heads so far up your asses that you can not see the forest for the trees

I SEE the forest and the trees....

many of us have taken the KISS idea of modding to heart

if an empty motor oil bottle and a few zip ties can fix an issue as well as a $400 part...

who is ahead in the end???

I know the answer to that....

and if that isn't the answer.....it wont hurt anything, either....

so...in the end.....what did you gain by being an ass hole here?
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Old 11-07-2014, 07:03 PM   #17
AWDWRXLOVER
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Member#: 50267
Join Date: Dec 2003
Chapter/Region: SWIC
Vehicle:
02 built hybrid
sr55/meth/sick speed

Default

Go drink some trannys cocktail
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Old 11-08-2014, 07:35 AM   #18
tomacGTi
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Member#: 297396
Join Date: Oct 2011
Default

Two seconds of google...

http://www.ludicrous-speed.com/wiki/...fuel_slosh_mod

http://www.rs25.com/forums/f13/t1819...deo-ideas.html

http://www.iwsti.com/forums/2-5-lite...liminator.html

http://www.rs25.com/forums/f105/t175...-pump-mod.html

Or using a quart fuel bottle works too. Make sure you use zipties that won't turn to goo in continuous fuel exposure.


Cliffs: if a surge baffle doesn't help, you'll need to swap a wrx/sti tank in with a transfer pump or search out an unobtainium v5 STi pump assembly
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