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Cylinder 2 and 3 no spark

Tiny
DAVIN01
  • MEMBER
  • 2003 MITSUBISHI LANCER
  • 182,000 MILES
Got a 2003 lancer. Starts but cylinder 2 and 3 give no spark. I assume it is the ignition coil but was wondering if the crank sensor will make only 2 cylinder fire and not the other 2
Tuesday, November 1st, 2011 AT 12:48 AM

5 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
If coils are switchable(interchangable) you can test that way. But no, it's not sensor.
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Tuesday, November 1st, 2011 AT 2:15 AM
Tiny
DAVIN01
  • MEMBER
  • 5 POSTS
Switched the coils and still the same thing. 1&4 sparks fine but 2&3 just wont spark at all.

One thing to mention when me and my friend was plugging back everything, he accidentally plugged the spark plug wire to the crank position sensor and the CPS wire to the coil. The coil seems to be okay but was wondering if he could have damaged the crank position sensor. They are both the same plugs so it was a simple mistake
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Tuesday, November 1st, 2011 AT 5:19 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Seems odd that they are the same plug? Any luck yet? Will check on wiring harness diagrams and get back to you.
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Wednesday, November 2nd, 2011 AT 9:44 PM
Tiny
DAVIN01
  • MEMBER
  • 5 POSTS
Apparently it was the ECU, I tried another and it worked fine. Seemed to have burned something in the ECU for that pair or cylinders.
Even the guys at the Mitsubishi dealership said it is strange that the manufactures made the harness that way and said this is not the first time they have seen this mistake
Thanks for the assistance
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Wednesday, November 2nd, 2011 AT 10:40 PM
Tiny
KEVINANDERSON1
  • MEMBER
  • 1 POST
Did yours sound like a Subaru when u ran it I did the same thing by mistake since there both same connector but I have no spark in cylinder 2, 3 swapped 4 different ones and nothing, and my AFR gauge is reading 17.8 which means lean so I'm wondering if u might have had same problems
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Friday, December 28th, 2012 AT 8:50 AM

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