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

94 cobra hard start and wont idle

  • Thread starter Thread starter aamcotech
  • Start date Start date Jul 11, 2010

aamcotech

New Member
Apr 24, 2010
8
0
0
columbus ohio
Jul 11, 2010
#1
  • Jul 11, 2010
  • #1
I have a 94 cobra that doesnt want to idle or start when the car is warmed up. the motor has 3k miles on a rebuild e303 cam harland sharp roller rockers edelbrock rpm 2 intake elbow bbk 70mm tb 30lb injectors 75mm mass air for the 30lb injectors and egr deleted a/c deleted smog pump deleted once the car is warmed up it doesnt want to stay idling it will idle for a few seconds then surge and stall then when i go to start it back up it wants to load up with fuel and not start unless i give it some throttle i have allready put a reman dist in it and need some help where to look to fix these other problem anybody have some idea's i dont know where to begin thanks mike. also the car wants to run a little hot at times but never overheats and not all the time
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Jul 12, 2010
#2
  • Jul 12, 2010
  • #2
Have you pulled codes and looked for vac leaks?
 

aamcotech

New Member
Apr 24, 2010
8
0
0
columbus ohio
Jul 12, 2010
#3
  • Jul 12, 2010
  • #3
havent had a chance to pull codes gonna check that one day this week no vac leaks that i could find
 

aamcotech

New Member
Apr 24, 2010
8
0
0
columbus ohio
Jul 12, 2010
#4
  • Jul 12, 2010
  • #4
did a koeo test today and came up with a 511 code pcm read only? or something like that alldata says replace pcm
 

Chythar

Recently finished repairing my rear
20+ Year Stangneter
Aug 26, 2004
2,373
140
113
Foothill Ranch, CA
Jul 12, 2010
#5
  • Jul 12, 2010
  • #5
511 is common when a chip is installed in the ECM diagnostic port. Did you or a previous owner install a tuning chip? If you do, 511 will always pop up and can be ignored.
 

aamcotech

New Member
Apr 24, 2010
8
0
0
columbus ohio
Jul 12, 2010
#6
  • Jul 12, 2010
  • #6
im not sure i didnt put a chip in it i just got the car last tuesday to replace my red 94 cobra that got rearended
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Jul 15, 2010
#7
  • Jul 15, 2010
  • #7
aamcotech said:
im not sure i didnt put a chip in it i just got the car last tuesday to replace my red 94 cobra that got rearended
Click to expand...

pull the pcm and see what brand the chip is , then find the nearest tuner that can reburn the chip for you , sounds like its probably a tune issue , most likely due to the injectors and MAF
 

aamcotech

New Member
Apr 24, 2010
8
0
0
columbus ohio
Jul 15, 2010
#8
  • Jul 15, 2010
  • #8
it did have a chip brand unknown its covered with velcro to hold it to the case since i unplugged it it idles and starts fine but it does not run as good as it did
 

stangbangerrick

Member
Mar 29, 2010
63
1
8
Colonial Hgts, VA
Jul 16, 2010
#9
  • Jul 16, 2010
  • #9
Man I would find me a shop where you can get it dyno tuned. You have egr deleted and maybe th ECM needs to be reprogrammed to deal with EGR not being there.
 
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