![I replaced the spark plugs on my 2003 Honda Civic, 2 weeks later they look like this. What's causing 2 of them to be way more dirty than the other 2 & I replaced the spark plugs on my 2003 Honda Civic, 2 weeks later they look like this. What's causing 2 of them to be way more dirty than the other 2 &](https://i.redd.it/ondlkoni45p91.jpg)
I replaced the spark plugs on my 2003 Honda Civic, 2 weeks later they look like this. What's causing 2 of them to be way more dirty than the other 2 &
![I replaced the spark plugs on my 2003 Honda Civic, 2 weeks later they look like this. What's causing 2 of them to be way more dirty than the other 2 & I replaced the spark plugs on my 2003 Honda Civic, 2 weeks later they look like this. What's causing 2 of them to be way more dirty than the other 2 &](https://i.redd.it/x8oqfoni45p91.jpg)
I replaced the spark plugs on my 2003 Honda Civic, 2 weeks later they look like this. What's causing 2 of them to be way more dirty than the other 2 &
![Genuine Honda Civic 5 Door 2.0 Petrol Spark Plug Set 2003-2005 (Set of 4) (9807B5617P) - Cox Motor Parts Genuine Honda Civic 5 Door 2.0 Petrol Spark Plug Set 2003-2005 (Set of 4) (9807B5617P) - Cox Motor Parts](https://www.coxmotorparts.co.uk/wp-content/uploads/2017/08/Spark-Plugs-4.jpg)
Genuine Honda Civic 5 Door 2.0 Petrol Spark Plug Set 2003-2005 (Set of 4) (9807B5617P) - Cox Motor Parts
![Spark Plugs Ignition Coils How to replace install fix change 01 02 03 04 05 Honda Civic replacement - YouTube Spark Plugs Ignition Coils How to replace install fix change 01 02 03 04 05 Honda Civic replacement - YouTube](https://i.ytimg.com/vi/_kfimR2ZcyM/sddefault.jpg)