And also removed and cleaned my spark plugs. All these collectively seemed to have a great impact on the engine\u2019s performance! The engine runs much smoother and feels a lot more sporty!
For spark, I wasn't sure I had the right plugs so I went with the OEM Champion plugs that were recommended in the Bentley. I checked for spark, no issues there.
New plugs and coils went in and the misfire is gone. Sounds healthy too.
I did replace the spark plugs at 70k miles
Just changed out the original plugs in my 2014 Ed30 GLi at 58K and totally agree with the other observations here. The idling has improved tremendously and the general over all performance of the car is back where it should be.
Replace those plugs with nothing other than the Champion 7989 plugs. They are about $14 each and they are a 1 piece design.
I once had to use 99 cent Champion plugs in my car for a few months when I was flat broke. They worked fine but didn't last long.
Side note, Champion spark plugs suck. Use them in lawn mowers.
Champion is shit for cars. Leave it for mowers and weed eaters.
I would return them and get Motorcraft anyway. Champion is garbage.
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