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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

94 Cobra running rough (PLEASE HELP)!!!

  • Thread starter Thread starter nos90gt
  • Start date Start date Apr 14, 2006
N

nos90gt

New Member
Nov 30, 2003
70
0
0
Central FL
Apr 14, 2006
#1
  • Apr 14, 2006
  • #1
(94 COBRA) Okay, here we go. About 2 weeks ago I started up my car and turned on the A/C and the car started to idle down and died. Started it up again and it was fine. Just the other day it did the same thing when slowing down to stop. Idle would go up and back down and stall. I thought it might be the IAC, so went to ford and bought a new one and one my way home the car started to run worst. It idles bad like I just installed a monster cam in it. I put on the IAC and reconnected the battery. Started it up and still ran like $hit. I check the plugs, cap, rotor. It has 40 psi of fuel at idle.

I went to 2 different shops and they plug into the inside one, nothing would come up. Where do I go from here? Could of the computer gone into limp mode? Also when you check for codes in a 94 do you hook up the scanner from the inside of the car or under the hood like on a fox body to the EEC plug? Thanks for any help you can give me. Scott insane6925@aol.com
 

legalize420

Active Member
May 21, 2005
1,541
1
37
South Florida
Apr 14, 2006
#2
  • Apr 14, 2006
  • #2
you pull codes from under the hood. i never messed with my fuel pressure but the gauge i have mounted on my rail reads about 32 at idle with all the vacuum lines connected.
 

bill302

Active Member
Nov 2, 2005
2,131
1
46
alabama,gadsden
Apr 14, 2006
#3
  • Apr 14, 2006
  • #3
try to reset the computer disconnect battery for about 30 mins. and see what that does and then we will go from there. the plug to check cel is under the hood on passenger side on back of fender wall between firewall
 

bill302

Active Member
Nov 2, 2005
2,131
1
46
alabama,gadsden
Apr 14, 2006
#4
  • Apr 14, 2006
  • #4
you can also click on link below and under solving idle problems complete part 1-5

http://www.muscularmustangs.com/maintain.php
 
N

nos90gt

New Member
Nov 30, 2003
70
0
0
Central FL
Apr 14, 2006
#5
  • Apr 14, 2006
  • #5
I have disconnect battery and tried that but still no luck. The car Kinda sounds like when it is out of timing but have check that too.
 

bill302

Active Member
Nov 2, 2005
2,131
1
46
alabama,gadsden
Apr 14, 2006
#6
  • Apr 14, 2006
  • #6
you need to pull the codes and post results click on link to see instructions on how to pull codes with a test light plus the link on solving idle problems might help have you cleaned the maf and set the tps at .98-.99 volts.

http://www.muscularmustangs.com/test1.php
 
N

nos90gt

New Member
Nov 30, 2003
70
0
0
Central FL
Apr 14, 2006
#7
  • Apr 14, 2006
  • #7
I will let you know ASAP. Thanks
 

bill302

Active Member
Nov 2, 2005
2,131
1
46
alabama,gadsden
Apr 14, 2006
#8
  • Apr 14, 2006
  • #8
after pulling codes here are the code meaningsclick on link

http://www.muscularmustangs.com/test3.php
 
N

nos90gt

New Member
Nov 30, 2003
70
0
0
Central FL
Apr 14, 2006
#9
  • Apr 14, 2006
  • #9
No code came up. Just egr and smog which are both eliminated.
 
N

nos90gt

New Member
Nov 30, 2003
70
0
0
Central FL
Apr 17, 2006
#10
  • Apr 17, 2006
  • #10
I replace the pip/stator today. Car still is still bucking and running rough. Heard a noise coming from the driverside. Pulled the valve cover and found a broken Valve-spring on the #6 cyl. Do you think that is my main problem?
 
N

nos90gt

New Member
Nov 30, 2003
70
0
0
Central FL
Apr 17, 2006
#11
  • Apr 17, 2006
  • #11
ANYONE???? Please help
 
R

Ralphg427

New Member
Apr 11, 2005
1
0
0
Apr 17, 2006
#12
  • Apr 17, 2006
  • #12
absolutely...is it an intake or an exhaust valve
 
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