Code: #1 Spark Plug Misfire

2000 DODGE INTREPID
122,000 MILES
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GREATHORNEDOWL
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  • 2 POSTS
No spark at the #1 spark plug. Relaced coil with new, replaced plug with new. Swapped #1 coil with #2, same problem. Swapped #1 plug with #2, same problem. Reading another post, Crank & cam sensor could be at fault, yet wouldn't it effect all plugs? Any help before I spend hundreds at my local mechanic would be greatly appreciated. Read somewhere it could be an injector?? Thank you, Charles
Sep 22, 2012 at 3:19 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
injector would not cause a no spark condition.

check the wiring for the coil. if it is ok, i suspect either a flywheel for the crank sensor or a bad pcm

Roy
Sep 22, 2012 at 3:35 PM
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GREATHORNEDOWL
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Thank you for your quick response. What voltage should be at the coil connector, 12v or 5? Multimeter work? Tried to read it before but I think I had the MM on wrong voltage, DC, yes? Thank you again, Charles
Sep 22, 2012 at 5:01 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
12 volts. at the coil.the other wires go back to the pacm and you need to ohm them out to be sure there is no break.

a scope would help from a scan tool to verify the flywheel signal i mentioned.

Roy
Sep 22, 2012 at 5:05 PM
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