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Author
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Topic: UPDATE: questions after S-trim install on my 94gt
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94gt
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Member # 3060
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posted
 
 
I just finished installing a s-trim on my 94gt...
it had the HO version, and I installed everything per the instructions. there were only a few things that I had to "redneck" like the thermostat housing didnt allow the bracket to line up correctly. I massaged the housing and beyond that, it was really trouble free.
but when I test drove it home just now, it seemed..... sluiggish, like the gas pedal was sticking. I did try and rotate the boost retard controller from 0-3 with the same results.
Would me already having a 255lph in my tank (in addition to the one that came with the kit) cause this?
I also got a CE light on the way home, Ill pull the codes tomorrow.
[ February 07, 2005, 12:31 PM: Message edited by: 94gt ]
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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SydeWayzSix
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Member # 2222
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posted
sounds like a possible misfire..sluggish with a CE light...but i'm not sure ![[Confused]](confused.gif) Did you change your injectors and MAF at the same time?
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1989 Notchback "SF Giants" edition...
Goodbye '00 Kawi ZX-6R...you will be missed dearly.
....on with the show! :)
Posts: 1999 | From: Bay Area | Registered: Dec 2002
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94gt
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Member # 3060
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posted
no, since the system is designed to run on a stock set up i didnt. I'm ordering a fuel pressure guage and prolly some injectors.. any reccomendations on what size? I have another MAF thats calibrated for the 24'ers
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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166 Merlo
FELONY
MOTORSPORTS
Member # 1549
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posted
How old are your spark plugs? what kind, did you regap them after the install? no huh?
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'89 - Boss Coupe
'70 - Drop Cutthang
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'87 - 0166, Its real
Posts: 3954 | From: Thebay | Registered: Jul 2002
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SlowStockFox
Stock Fox
Member # 1081
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posted
good luck with that. i wish i could give u some info
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i walk around....dont drink and drive
Posts: 2957 | From: cali | Registered: Mar 2002
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92stangLX
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Member # 3252
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posted
Do you have an adjustable fuel pressure regulator? If so, what is your fuel pressure set at? How about the timing?
You may also want to check and make sure that all of the hose clamps for the blower inlet and outlet are tight. Also double check all the vaccum lines.
If you didn't do a tune up (plugs, wires, dist cap/rotor, and fuel filter) you may want to do one.
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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94gt
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Member # 3060
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posted
actually, I did buy new plugs, but the install kit said that I only needed to install them if the car had less than 10k on the current ones. The ones that I bought were 1 heat range colder, autozone didnt have any that were 2 ranges colder at the moment.
I have a low mile replacement dist, 5 month old wires, dist cap, rotor, ICM, and fresh oil change and filter.
also, the manual didnt say anything about the gap on the plugs? what should I set them at?
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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CDT
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Member # 5004
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posted
it could be related to your fuel pump and the FMU, I would suggest buying big injectors and dumping the FMU.
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Custom Dyno Tuning
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Posts: 1053 | From: Hayward | Registered: Nov 2004
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92stangLX
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Member # 3252
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posted
Is the car "sluggish" only when it is under boost or all the time? How does it idle?
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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94gt
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Member # 3060
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posted
quote:
Originally posted by 92stangLX:
Is the car "sluggish" only when it is under boost or all the time? How does it idle?
it seemed to idle lower, but I kinda expected it to drag a little more with the s/c on it. and its constantly sluggish when I gas it. Why would i need to get bigger injectors and ditch the FMU? and what size?
thanks!
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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Fostang
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Member # 3752
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posted
Did you close the spark gap?
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
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68’ Pony Convertible
66’ Pony Coupe
Posts: 3012 | From: Stockton/Danville | Registered: Nov 2003
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94gt
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Member # 3060
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posted
quote:
Originally posted by Fostang:
Did you close the spark gap?
to what? It didnt say how much to close it! ![[Frown]](frown.gif)
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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Fostang
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Member # 3752
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posted
.035
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3012 | From: Stockton/Danville | Registered: Nov 2003
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91 5.0
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Member # 1527
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posted
You shouldnt ditch the FMU unless you get the car tuned. The FMU is designed to raise fuel pressure and deliever more fuel under boost. Bigger injectors and no FMU without a tune may not be a good idea. As far as the plugs, i'd go about 34 thousandths.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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94gt
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Member # 3060
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posted
ok, i just found a loose page that said .032-.040
ill do that and report back in a few hours! ![[patriot]](graemlins/patriot.gif)
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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94gt
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Member # 3060
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posted
ok, i regapped the plugs at .035 and it seemed to idle a lot better.
I kept getting a lean CE light, and found that my 2nd fuel pump wasnt switching on.
Fixed that, and now it feels like the gas pedal isnt wanting to go down easy. It also sounds like its mis-firing too. I made sure that when I reconnected the plug wires that I did them the same way they came out.
any suggestions? Please!!!
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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white1990stang
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Member # 2307
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posted
i know you just mentioned the fuel pump but what one wasnt turning on. my t-rex inline blew the fuse a few times. i didnt use the fmu or the boost retard when i installed mine. im running 42's and i got a tune and it runs awesome.
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You must be fast, cause I was haullin ass when I passed you.
Posts: 1308 | From: martinez | Registered: Jan 2003
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94gt
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Member # 3060
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posted
It turned out to be that I had #2 and #3 plug wires oops
thanks guys!~
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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03SVTPower
CAFords OG
Member # 518
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posted
When are you gonna swing by the apartments again? ![[Big Grin]](biggrin.gif)
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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94gt
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Member # 3060
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posted
quote:
Originally posted by 03SVTPower:
When are you gonna swing by the apartments again?
when are you free? I work graves 0001-0800 so name a time or somethin! ![[Razz]](tongue.gif)
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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03SVTPower
CAFords OG
Member # 518
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posted
quote:
Originally posted by 94gt:
quote:
Originally posted by 03SVTPower:
When are you gonna swing by the apartments again?
when are you free? I work graves 0001-0800 so name a time or somethin!
I should be back on mids myself next week or so, im on days right now training, ill wait til im on the same shift so we can work something out, like to check it out!
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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