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Author
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Topic: No idea whats wrong.. stumped
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93NotchbackLX
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Member # 12122
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posted
 
 
i currently have a 93 mustang lx notchback that was running absolutely perfect yesterday 9-21-2012 and then later that night out of no where it started hesistating in the acceleration and sputtering a little bit. i got home parked it. came back out few hours later trying to go somewhere forgetting about what had happened and then it would start, idle very roughly and then die. Now this morning when i came out to try and start it.. no go. just turns over doesnt even try to fire. i replaced fuel filter, fuel pump IS working for sure. i have spark. i spray carb cleaner in my throttle body and still wouldnt fire. My TPS is in its proper position as well. i have no idea whats going on
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93' CoupeLX w/ BBK-Pulleys, Fuel Pump, Strut Tower Brace, TB, TBS, EGR spacer,Intake, headers.MsD Cap and rotor,x pipe & magnapac,Eibach springs
Posts: 56 | From: 916 | Registered: Jun 2012
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Captain Obvious
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Member # 7842
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posted
Got fuel and spark....maybe a timing issue. Check if the distributor moved somehow.
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It's NOT illegal. It's just frowned upon, like masturbating on an airplane.
Posts: 1976 | Registered: Aug 2007
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95gtdrop
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Member # 7478
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posted
that was my initial thought as well.
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1997 SVT cobra SOLD;(
2004 SVT Cobra Vert
Posts: 1221 | From: sacramento | Registered: Mar 2007
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Ryn621
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Member # 11276
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posted
do a compression check also
Posts: 364 | From: 707\510 | Registered: Sep 2011
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91calypso
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Member # 12035
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posted
Maybe the pickup in the distributer is no good. That happened to me the plastic somehow like disintegrated . It sputtered and misfired. Because it was bouncing around inside
Posts: 154 | From: Hayward | Registered: May 2012
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93NotchbackLX
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Member # 12122
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posted
okay ive replaced fuel filter, confirmed my fuel pump is working, im getting spark, my distrubutor and timing are good (including cap and rotor) engine turns over and tries to fire now but still wont.
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93' CoupeLX w/ BBK-Pulleys, Fuel Pump, Strut Tower Brace, TB, TBS, EGR spacer,Intake, headers.MsD Cap and rotor,x pipe & magnapac,Eibach springs
Posts: 56 | From: 916 | Registered: Jun 2012
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93NotchbackLX
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Member # 12122
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posted
i was told by a friend it could either be my ECU, nuetral start (safety) switch or maybe that my alarm system is some how involved?
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93' CoupeLX w/ BBK-Pulleys, Fuel Pump, Strut Tower Brace, TB, TBS, EGR spacer,Intake, headers.MsD Cap and rotor,x pipe & magnapac,Eibach springs
Posts: 56 | From: 916 | Registered: Jun 2012
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BIGBALLFACTOR
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Member # 7277
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posted
quote:
Originally posted by 93NotchbackLX:
nuetral start (safety) switch
your engine wont trun over if it was bad
Posts: 6908 | From: okc | Registered: Dec 2006
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89foxstang
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Member # 5908
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posted
At this point I'd go with what was said above , compression test , if you find a low hole then leak down test. Also check for any sort of vacuum leaks
Posts: 825 | From: Davis | Registered: Aug 2005
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86- 50
TEAM PLATINUM
Member # 4723
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posted
I'll bet computer, have one of your buddy's come by with there mustang and try out there computer in your car.
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My baby:88gt 347 stroker
RIP MATT, Gone but never forgotten
TEAM PLATINUM
Posts: 1796 | From: richmond | Registered: Jul 2004
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93NotchbackLX
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Member # 12122
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posted
ya i got it to start but it wont idle without some assistance and even then when i apply load to the car it dies, i just adjusted the timing and made sure it was in its proper place. still no clue. It will start but it takes some cranking over. and its back fires really bad ass well when revved
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93' CoupeLX w/ BBK-Pulleys, Fuel Pump, Strut Tower Brace, TB, TBS, EGR spacer,Intake, headers.MsD Cap and rotor,x pipe & magnapac,Eibach springs
Posts: 56 | From: 916 | Registered: Jun 2012
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93NotchbackLX
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Member # 12122
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posted
would an inadequacy of fuel pressure from my fuel pump cause it to run like this?, i know i'm getting fuel to my fuel rail but i'm unsure on whether or not it's maintaining that pressure.
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93' CoupeLX w/ BBK-Pulleys, Fuel Pump, Strut Tower Brace, TB, TBS, EGR spacer,Intake, headers.MsD Cap and rotor,x pipe & magnapac,Eibach springs
Posts: 56 | From: 916 | Registered: Jun 2012
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nitrous_bob
CAFords OG
Member # 77
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posted
put a gauge on the rail
to eliminate that possibility
OR you can do a quickie check which is better and run line under the hood to the passenger who can hold a gauge spliced into the rail, then not just idle....you can look for fluctuations
prob cheaper to replace the FPR, but if you had the stuff id test it first
you've eliminated spark...if its not fuel, id look for VAC issues
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5.0 OG since 1990
Posts: 1402 | From: st clair shores MI | Registered: Nov 2000
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MACK.GT
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Member # 10461
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posted
Check the computers max fuse, and your charging system
Posts: 446 | From: 510 | Registered: Nov 2010
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LXjames
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Member # 10791
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posted
Fusible link or PCM related.
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On Point Motorsport prez.
King Lx
Posts: 4761 | From: Pittsburg CA | Registered: Mar 2011
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stock fox
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Member # 9211
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posted
quote:
Originally posted by 50Reasons:
Fuel pump is bad
+1 sounds like a problem I had on oe of my coupes. Replace feul pump and should fix your problem
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🏁Sleeper notch under construction🏁
86 Notchback stang
Posts: 1849 | From: Sacramento | Registered: May 2009
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93NotchbackLX
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Member # 12122
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posted
well i just bought a 190LPH bbk high flow fuel pump from my work so im gonna install that tonight and see if it fixes my problem. will let you know how that goes. Thanks for all the help so far guys
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93' CoupeLX w/ BBK-Pulleys, Fuel Pump, Strut Tower Brace, TB, TBS, EGR spacer,Intake, headers.MsD Cap and rotor,x pipe & magnapac,Eibach springs
Posts: 56 | From: 916 | Registered: Jun 2012
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93NotchbackLX
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Member # 12122
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posted
so replaced the fuel pump and still a no go. im gonna have settle on the fact that it could possibily be the ECU which im ordering tomorrow..im really running thin on options
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93' CoupeLX w/ BBK-Pulleys, Fuel Pump, Strut Tower Brace, TB, TBS, EGR spacer,Intake, headers.MsD Cap and rotor,x pipe & magnapac,Eibach springs
Posts: 56 | From: 916 | Registered: Jun 2012
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eastoaklandss
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Member # 8011
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posted
Clean the MAF and c if that makes a diffrence or if some one has a 50 and swamp outage MAF and see if it starts happend to me before
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1970 chevelle ls2 6spd
1989 6.0 ls2 notchback
1999 camaro ss 10.3 @130 old setup/13.7 @114 new setup lol
1986 5.0 t-bird
1991 notchback charged
Posts: 411 | From: Oakland/Hayward | Registered: Nov 2007
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351stang
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Member # 7579
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posted
Try the coil had that problem before even tho you have spark the coil could still be bad
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tows b 4 hoes
Posts: 263 | From: richmond | Registered: Apr 2007
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351stang
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Member # 7579
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posted
Try the coil had that problem before even tho you have spark the coil could still be bad
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tows b 4 hoes
Posts: 263 | From: richmond | Registered: Apr 2007
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351stang
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Member # 7579
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posted
Try the coil had that problem before even tho you have spark the coil could still be bad
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tows b 4 hoes
Posts: 263 | From: richmond | Registered: Apr 2007
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89foxstang
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Member # 5908
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posted
Still haven't done a compression or leak down test? Shouldve started there(potentially) save some money!!
Posts: 825 | From: Davis | Registered: Aug 2005
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Secnd2nun64
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Member # 1431
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posted
My porsche did the same thing a couple weeks ago. Turned out to be the idle air control sensor was gummed up on the throttle body. Id take the throttle body off and give it all a good cleaning.
Posts: 1460 | From: CA | Registered: Jun 2002
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