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#1
06-20-2007, 03:35 AM
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Potential Boost or Fuel problem
Well today I was driving down the road and all of a sudden as soon as my car hits boost the car just bogs down. It feels like a fuel cut. I really dont know what it is though. The car has been driving just fine. I really wish I could explain it better. Any ideas anyone?
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1998 Eclipse GSX 6 Bolt swap MHI Big 16g FP Race Manifold Apex'i N1 Cat-back Apex'i N1 Downpipe Walbro 255 fuel pump GReddy Type S BOV Turbo XS Boost Controller Balance Shaft Elimininator ACT 2600 RRE 11lb No Name Flywheel Prothane Motor Mounts Tokico Illuminas Advanced Handling Kit RRE Front and Rear strut tower bars RMDSM Front and Rear Sway Bars TRE Stage 2 Tranny ARP Head Studs, Main Studs, Rod bolts 
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#2
06-20-2007, 08:31 AM
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Re: Potential Boost or Fuel problem
Can you capture a log of when it happens? Checked your turbo for shaft play lately? What about leaks?
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 1997 Spyder GS-T 5-Speed EVO III 16g, DSMLink, Walboro 190 lph Fuel Pump, FIC 650cc injectors, CoolingMist 150psi Methanol Injection, Greddy EVO 2 Cat Back, 2.5" Extreme DP, 2.5" Extreme Hi-Flow Cat, Injen intake, HyperDrive C1 Street Disk & PP, HyperDrive Lightweight Flywheel, 1g BOV, RRE UICP, Home Depot MBC, AEM UEGO WBO2, Brembo Slotted rotors, Akebono Ceramic Pads
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#3
06-20-2007, 04:40 PM
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Re: Potential Boost or Fuel problem
Unfortunatly I dont have a logger yet...I have a small oil leak out of the oil pan but thats it as far as leaks go....I havent done a boost leak test yet...I am going to do that tonight....There are also no CEL's.
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1998 Eclipse GSX 6 Bolt swap MHI Big 16g FP Race Manifold Apex'i N1 Cat-back Apex'i N1 Downpipe Walbro 255 fuel pump GReddy Type S BOV Turbo XS Boost Controller Balance Shaft Elimininator ACT 2600 RRE 11lb No Name Flywheel Prothane Motor Mounts Tokico Illuminas Advanced Handling Kit RRE Front and Rear strut tower bars RMDSM Front and Rear Sway Bars TRE Stage 2 Tranny ARP Head Studs, Main Studs, Rod bolts
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#4
06-20-2007, 06:03 PM
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Re: Potential Boost or Fuel problem
sounds like plug gapping could be a problem
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FP 18g turbo e3 o2 & mani, 3" exhaust, , 7 bolt, wiseco/eagle, walbro 255hp re-wired, Aeromotive FPR, FIC 1150cc, injen intake, greddy RS, aem wideband, turbo xs mbc, act 2600 clutch sprung 6 puck, BC 272's, dsmlink v2.5, ETS FMIC, Devils Own, JMF SMIM. 18 Inch chrome rims In closet AEM Fuel Rail, SS Lines, 1997 TSI AWD Diamonds Are 4Ever 12.7 @ 107 http://i83.photobucket.com/albums/j2...y/DSC00461.jpg
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#5
06-20-2007, 08:43 PM
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Re: Potential Boost or Fuel problem
Maybe running way too rich? I had this problem and the car would spit and sputter in the upper rpms with boost, and lots of black smoke. Leaned it out and it was good to go. Of course, check for boost leaks that will cause u to run rich.
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98 Eclipse GSX-EVO3 16G, BC 272's,ETS FMIC and short route piping,TRE Stage 2 tranny, ACT 2100, Walbro 190lph,550cc jectors,SAFC NEO,GM MAFT, AEM UEGO wideband,ported SBR Exhaust Manifold,O2 Dump,EBay Intake,3" megan downpipe and catback exhaust,TurboXS boost controller,HKS BOV,Ebay Short Shifter,Boost Gauge,Symbroski shift kit & shift cable bushings, RRE catch can 94 Talon 1.8L-SOLD 02 Civic EX- Daily driver (staying stock)
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#6
06-20-2007, 09:47 PM
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Re: Potential Boost or Fuel problem
 boost leak probably, since your car runs good until you hit full boost...
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#7
06-20-2007, 11:36 PM
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Re: Potential Boost or Fuel problem
its not when it hits full boost...it happens when I hit any boost....so I cant really go over like 3k rpms....or if i do I have to get there really slowly...
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1998 Eclipse GSX 6 Bolt swap MHI Big 16g FP Race Manifold Apex'i N1 Cat-back Apex'i N1 Downpipe Walbro 255 fuel pump GReddy Type S BOV Turbo XS Boost Controller Balance Shaft Elimininator ACT 2600 RRE 11lb No Name Flywheel Prothane Motor Mounts Tokico Illuminas Advanced Handling Kit RRE Front and Rear strut tower bars RMDSM Front and Rear Sway Bars TRE Stage 2 Tranny ARP Head Studs, Main Studs, Rod bolts
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#8
06-21-2007, 12:29 AM
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Re: Potential Boost or Fuel problem
Quote:
 EDIT: my car runs about how you are saying when i blow off an inter cooler pipe, so that would be the first place i would check... 
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#9
06-21-2007, 12:41 AM
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Re: Potential Boost or Fuel problem
when I blow off a pipe my car just dies unless i hammer the gas and keep the rpms up
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FP 18g turbo e3 o2 & mani, 3" exhaust, , 7 bolt, wiseco/eagle, walbro 255hp re-wired, Aeromotive FPR, FIC 1150cc, injen intake, greddy RS, aem wideband, turbo xs mbc, act 2600 clutch sprung 6 puck, BC 272's, dsmlink v2.5, ETS FMIC, Devils Own, JMF SMIM. 18 Inch chrome rims In closet AEM Fuel Rail, SS Lines, 1997 TSI AWD Diamonds Are 4Ever 12.7 @ 107 http://i83.photobucket.com/albums/j2...y/DSC00461.jpg
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#10
06-21-2007, 05:22 PM
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Re: Potential Boost or Fuel problem
Whenever I have blown off an intercooler pipe it wouldnt idle right. It would be real jumpy. Right now the car idles fine, drives fine until the boost kicks in.
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1998 Eclipse GSX 6 Bolt swap MHI Big 16g FP Race Manifold Apex'i N1 Cat-back Apex'i N1 Downpipe Walbro 255 fuel pump GReddy Type S BOV Turbo XS Boost Controller Balance Shaft Elimininator ACT 2600 RRE 11lb No Name Flywheel Prothane Motor Mounts Tokico Illuminas Advanced Handling Kit RRE Front and Rear strut tower bars RMDSM Front and Rear Sway Bars TRE Stage 2 Tranny ARP Head Studs, Main Studs, Rod bolts
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#11
07-30-2007, 10:21 PM
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Re: Potential Boost or Fuel problem
I'm having a similar problem...gauge reads full boost but the car struggles to hit 60mph (checked for boost leaks 3 seperate times) and the RPM's seem to just crawl. I was told I was putting out quite a bit of black smoke. Could it have slipped out of timing and caused these symptoms?
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2004 Dodge SRT-4 - K&N Ram Air Intake - AGP wg - HKS SSQ BOV - AEM UEGO wideband - stock boost gauge - Full 3" custom exhaust w/ Magnaflow muffler - Rerouted vaccuum lines
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#12
07-31-2007, 08:41 PM
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Re: Potential Boost or Fuel problem
Quote:
I installed an LICP on my old GST and had the exact same problem you describe. Come to find out I had a minor boostleak where my pipes hooked up to the intercooler.
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1991 GSX 2.3 Stroker
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#13
08-01-2007, 11:58 AM
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Re: Potential Boost or Fuel problem
Don't do what i did..when my car did that i didn't notice my TPS sensor was unplugged...lol..
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#14
08-01-2007, 04:45 PM
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Re: Potential Boost or Fuel problem
I don't think its fuel cut because when you get that it feels like you hit a brick wall. I would bet money you have a boost leak issue. I would check again for leaks if I were you. Make sure that when you check you are checking once with the throttle body closed and once with it open.
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Speed: a scalar quantity which refers to "how fast an object is moving." A fast-moving object (my DSM) has a high speed while a slow-moving object (your Camaro) has a low speed. An object with no movement at all has a zero speed (most Mustangs). 
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