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No spark in two of the four ignition coils

Tiny
ALFREDO674
  • MEMBER
  • 1995 MITSUBISHI ECLIPSE
  • 2.0L
  • 4 CYL
  • TURBO
  • FWD
  • MANUAL
  • 117,425 MILES
At first it didn't have spark in 1 and 4 I bought new coils and now two and there dont work I replaced them agian and it still does the same thing
Thursday, December 25th, 2014 AT 2:13 PM

10 Replies

Tiny
CATAFINA
  • MECHANIC
  • 167 POSTS
Its either coming from the electronic control unit or the crankshaft position sensor. Check it and then let me know what you got-
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Thursday, December 25th, 2014 AT 2:49 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
The Crank sensor will not fire one coil and not the other. The driver for that coil in the PCM can be bad but that's kinda rare. Swap coils and see if the problem moves before condemning anything else. It is far more likely to be a wiring problem between the PCM and coil than the PCM itself.
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Friday, December 26th, 2014 AT 2:24 AM
Tiny
ALFREDO674
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  • 5 POSTS
I swapeed the coils and still does the same thing
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Friday, December 26th, 2014 AT 4:34 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
The question is was it doing it on the same cylinders.
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Friday, December 26th, 2014 AT 4:37 PM
Tiny
ALFREDO674
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  • 5 POSTS
No first it was on 1 and 4
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Saturday, January 24th, 2015 AT 7:56 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
I still can't make sense of what you are saying. When you moved the new coils did the miss move with the coil or did the miss remain on the same cylinders?
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Saturday, January 24th, 2015 AT 8:04 PM
Tiny
ALFREDO674
  • MEMBER
  • 5 POSTS
At first it was on cylinder 1 and 4 after I changed the coil pack it changed to cylinder 2 and 3
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Saturday, January 24th, 2015 AT 8:07 PM
Tiny
WRENCHTECH
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I would change the coil again. It should be guaranteed.
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Saturday, January 24th, 2015 AT 8:09 PM
Tiny
ALFREDO674
  • MEMBER
  • 5 POSTS
I tried that agian and it just stayed on the same cylinder
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Saturday, January 24th, 2015 AT 8:12 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
That only leaves the ignition module.
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Saturday, January 24th, 2015 AT 8:15 PM

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