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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > replaced all 6 coils misfire few days later



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      02-08-2017, 05:05 PM   #1
Misty
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replaced all 6 coils misfire few days later

had misfires figured id change all 6 coils. Car was running great few days later randomly will get misfires on cyl2 just randomly it will either stay for a bit then when i get to my destination and i leave it for a few hours and come back it will be gone and SES will go away.

is it possible i put the coil in wrong lol?
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      02-08-2017, 05:23 PM   #2
Delusive
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It's either you need to change your spark plugs, valve cover gasket failed and leaks a little oil into the spark plug hole, or you didn't push the ignition coil in all the way. Those are my three guesses.
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      02-08-2017, 06:19 PM   #3
Misty
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Quote:
Originally Posted by Delusive View Post
It's either you need to change your spark plugs, valve cover gasket failed and leaks a little oil into the spark plug hole, or you didn't push the ignition coil in all the way. Those are my three guesses.
going to start with pushing it all the way then plugs while im at it since i forgot to change em when i did the coils
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      02-09-2017, 07:26 AM   #4
rothwem
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I just had an issue where the connector clip on my coil was defective and it allowed the connector to the coil to back out, which caused a misfire. Double check the connector and make sure its all the way on.
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