This is topic No idea whats wrong.. stumped in forum Tech Talk at Northern California Ford Owners  .


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Posted by 89HatchbackGT (Member # 12122) on :
 
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
 
Posted by 68stanger (Member # 7842) on :
 
Got fuel and spark....maybe a timing issue. Check if the distributor moved somehow.
 
Posted by 95gtdrop (Member # 7478) on :
 
that was my initial thought as well.
 
Posted by Ryn621 (Member # 11276) on :
 
do a compression check also
 
Posted by 91calypso (Member # 12035) on :
 
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
 
Posted by 93NotchbackLX (Member # 12122) on :
 
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.
 
Posted by 93NotchbackLX (Member # 12122) on :
 
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?
 
Posted by fast mf hatch dms crew (Member # 7277) on :
 
quote:
Originally posted by 93NotchbackLX:
nuetral start (safety) switch
your engine wont trun over if it was bad
 
Posted by 89foxstang (Member # 5908) on :
 
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
 
Posted by 86- 50 (Member # 4723) on :
 
I'll bet computer, have one of your buddy's come by with there mustang and try out there computer in your car.
 
Posted by 93NotchbackLX (Member # 12122) on :
 
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
 
Posted by 93NotchbackLX (Member # 12122) on :
 
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.
 
Posted by nitrous_bob (Member # 77) on :
 
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
 
Posted by MACK.GT (Member # 10461) on :
 
Check the computers max fuse, and your charging system
 
Posted by LXjames (Member # 10791) on :
 
Fusible link or PCM related.
 
Posted by 50Reasons (Member # 6452) on :
 
Fuel pump is bad
 
Posted by stock fox (Member # 9211) on :
 
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
 
Posted by 93NotchbackLX (Member # 12122) on :
 
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
 
Posted by 93NotchbackLX (Member # 12122) on :
 
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
 
Posted by eastoaklandss (Member # 8011) on :
 
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
 
Posted by 351stang (Member # 7579) on :
 
Try the coil had that problem before even tho you have spark the coil could still be bad
 
Posted by 351stang (Member # 7579) on :
 
Try the coil had that problem before even tho you have spark the coil could still be bad
 
Posted by 351stang (Member # 7579) on :
 
Try the coil had that problem before even tho you have spark the coil could still be bad
 
Posted by 89foxstang (Member # 5908) on :
 
Still haven't done a compression or leak down test? Shouldve started there(potentially) save some money!!
 
Posted by Secnd2nun64 (Member # 1431) on :
 
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.
 
Posted by 93NotchbackLX (Member # 12122) on :
 
I was the coil!!! even though i was getting spark it just wasn't enough to get my engine to fire. replaced it tonight and she fired up and ran like nothing ever happened. so i take it the sputtering and back firing was simply due to poor ignition:) Thanks for all your help guys
 
Posted by 93NotchbackLX (Member # 12122) on :
 
IT was the coil.. not I. ha
 
Posted by 86- 50 (Member # 4723) on :
 
quote:
Originally posted by 93NotchbackLX:
IT was the coil.. not I. ha
we have a winner, 351stang [patriot]
 
Posted by NEIGHT (Member # 8741) on :
 
I thought I put coil on here, I guess I never actually went thru N posted it. Whoops.
 
Posted by 95gtdrop (Member # 7478) on :
 
Sure ya did neight. LOL
 
Posted by 351stang (Member # 7579) on :
 
Well i put it up there not once but three times lol my phone got a little crazy
 
Posted by 95gtdrop (Member # 7478) on :
 
Koda, post some pics of your notch. I'm sure these guys will enjoy it.

The thing is clean as fuck!!!!!


Just no pics of your license plate though. ( 73 on dubs may be watching )
 




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