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Author
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Topic: my '93 LX dies like its out of gas
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sobroken
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Member # 2362
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posted
 
 
so i got a supercharger and got it tuned. like 1 week after the tune the car starts dying while im driving. after it would die i couldnt start it again till it cooled off alot. and when it got hot again it would die. so i was told to replace the stock distributer with an MSD. after that it ran for a few days but the timing was jacked. so i turned the timing down to 7. at 7 the ping went away, but a few days later it starts to die again when it gets hot. WTF is wrong with this car?
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'93/LX/5.0/sleeper
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Posts: 29 | Registered: Jan 2003
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Stimson
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Member # 51
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posted
Sounds like your TFI module is going bad. When its not starting, check to see if you have spark or not.
Posts: 2373 | Registered: Jun 2000
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maeco
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Member # 2578
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posted
i got the same problem.
but iknow mine has to do with the fuel pump
cuz when it would stop running or not start i
noticed that the fuel pump is dead,i got a t-rex pump so when it does die out i bypass my stock wiring and go directly to power from trex.i think its my stock wiring on the fuel side.but eventually it would come on again,also mine happens whenever cold /hot.
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Looking for clean white mustang email me
Posts: 2408 | From: bay area | Registered: Mar 2003
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85GT
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Member # 1695
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posted
what about vapor lock? my friend's car would die because of that..... i don't know if i even am close to helping but could that be something to look into?
Posts: 414 | From: Antioch | Registered: Aug 2002
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Stimson
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Member # 51
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posted
I don't think you can vapor lock an EFI car.
Posts: 2373 | Registered: Jun 2000
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Fast472Mach1
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Member # 2559
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posted
quote:
Originally posted by st5150:
I don't think you can vapor lock an EFI car.
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11.7@116 1.7 60ft. N/A
11.4@124 1.9 60ft. 100NX
Posts: 639 | From: Laguna West | Registered: Mar 2003
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FORDNUT
CAFords OG
Member # 2348
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posted
what kind of fuel pump?
Posts: 650 | From: Elk Grove,CA | Registered: Jan 2003
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91GR40LX
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Member # 1329
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posted
I have been battling this problem for a little while now. I believe I have finally fixed it. First, I removed the jumper harness behind the intake manifold. Second, I dropped my fuel tank to find whoever originally put the aftermarket fuel pump in left the factory "screen" filter in the tank. I was getting a loud bleeding off sound when I would stop the car and had some serious issues(20 psi on the rail) when I would try a hot restart. Have you checked/replaced your inline filter? Do you know how much pressure is on your rail when you try to restart?
Posts: 340 | From: East Bay | Registered: May 2002
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sobroken
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Member # 2362
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posted
i have a walbro 255lph fuel pump. i think it might be the TFI module. I dont have a bleeding off sound. who can help me diagnose this and fix it. i ask people and they dont seem to want to mess with it.
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'93/LX/5.0/sleeper
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Posts: 29 | Registered: Jan 2003
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Stimson
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Member # 51
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posted
If the car isn't firing the spark plugs when its not starting, then replace the TFI module.
Posts: 2373 | Registered: Jun 2000
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99gt-UJSTLST
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Member # 584
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posted
quote:
Originally posted by sobroken:
i have a walbro 255lph fuel pump. i think it might be the TFI module. I dont have a bleeding off sound. who can help me diagnose this and fix it. i ask people and they dont seem to want to mess with it.
hey did the MSD distriubuter come with anew TFI module. I thought they came with a new one
but yea it sounds like your TFI is goin bad
my friend had the same problem once we swaped it out the problem went away
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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sobroken
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Member # 2362
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posted
i think it did come with the TFI so i think maybe i have a short or something running to the module. do you think MSD will replace the module?
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'93/LX/5.0/sleeper
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Posts: 29 | Registered: Jan 2003
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99gt-UJSTLST
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Member # 584
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posted
quote:
Originally posted by sobroken:
i think it did come with the TFI so i think maybe i have a short or something running to the module. do you think MSD will replace the module?
well if it was doing it before you replaced the distibuter then
that is not the problem
hey give me a call I have some i deas on what could be happening
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by st5150:
I don't think you can vapor lock an EFI car.
My Jeep used to vapor lock in the hot weather but thats because i don't have an in tank fuel pump.
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Posts: 17578 | From: 530 | Registered: Jun 2002
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