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  • 1996 - 2004 SN95 Mustang -General/Talk-
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Engine Miss firing

  • Thread starter Thread starter 94stangfan
  • Start date Start date Mar 4, 2004

94stangfan

Member
Feb 23, 2003
290
2
19
Indianapolis, IN
Mar 4, 2004
#1
  • Mar 4, 2004
  • #1
All,

I had an oil pump go on my engine, so I bought a used one from a junk yard. The engine looks rebuilt.

After installing and starting, I found I have a miss-fire on Cyl 3. Does anyone have any idea what would cause this?

Thanks,

Keith
 

94stangfan

Member
Feb 23, 2003
290
2
19
Indianapolis, IN
Mar 4, 2004
#2
  • Mar 4, 2004
  • #2
One thing I forgot to mention is that I do have the Check Engine Light on. I read the code and it is a P0303. Which says Cyl 3 is misfiring.
 

dastang2

Active Member
Dec 11, 2003
2,020
0
46
tx
Mar 4, 2004
#3
  • Mar 4, 2004
  • #3
try switching a known good spark plug in 3 and see what happens. do a compression test too.
 

94stangfan

Member
Feb 23, 2003
290
2
19
Indianapolis, IN
Mar 5, 2004
#4
  • Mar 5, 2004
  • #4
It was an ID10T Error... I had to replace my fuel rails when putting the new engine in. I must have accidently unplugged that injector. That was my problem.

Problem Solved....

Thanks,

Keith
 
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