Join Date: Feb 2007
Nominated 16 Times in 67 Posts
TOTW/F/M Award(s): 28
Thanked 5,199 Times in 4,711 Posts
I would at least change the plug on the cylinder that wasn't firing as it has been subjected to poor running conditions and is likely to fail shortly. If it were mine I would change all the plugs - that way, all are of the same vintage and condition.
Currently in madnoel10's garage:
Honda Civic 1.4l