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Discussion Starter · #1 ·
OK so this is the second time happening in the past few weeks. Replaced all 4 coils and plugs. I did recently put a hondata basemap on the car without a proper tune. Would this be a reason to cause this problem?
 

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13 Civic Si Coupe
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21 Posts
Discussion Starter · #3 ·
I replaced all 4 coils. I did put the factory basemap back on the car. Never had a voltage alert or warning. And the new plugs were installed at an honda dealership. NGK plugs
 

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Discussion Starter · #4 ·
Is this on the Hondata basemap or Hondata factory map? I never saw a resolution to the last thread, but I'm hoping you followed the advice and reloaded a factory map.

Did you have proper battery voltage (meaning you didn't get a voltage warning from Hondata) while reflashing? Where did these new plugs come from?

Have you tried swapping the coil and/or plug from cylinder 3 into another to see if that moves the misfire?
Could it be the sensor maybe?
 
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