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Before you even start, use only NGK and or Subaru Plugs and wires.

- you can swap wires 1 to 3 and see if the fault follows.

- Plugs, if you are going to pull them you may as well change them.

- Could be a fuel problem as well, think fuel filter, injector.  The Injector can be swapped.

 

You didn't provide the year and head configuration.  Mileage would also be helpful.

 

Subaru coils hardly ever fail and I'd go used Subaru over aftermarket.

 

I have plenty of 96-99 DOHC coils.  $25 shipped.

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The misfire may also be caused by oil in the spark plug tube.  In that case replace the spark plug tube gaskets (and valve cover gaskets since it has to come off to do it.

In that case you don't need any spark plugs/wires/coils.

 

Otherwise, about the coils. used, they don't fail often enough to warrant new prices.

 

use the OEM NGK plugs

Subaru or high quality wires (these engines aren't very forgiving of lower grade ignition stuffs.

 

In general it would be good to verify what engine you have - year/model EJ25.

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Sorry I forgot the year its a 97 legacy LSI and I'm prying its only electrical if it goes as far as fuel I'm already doing the filter this week along with techron and I only run 93 for gas and it only has 126k and 26 on the rebuild

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