Earlier today when I was driving my 96 Accord (25th Anniversary Edition, 2.2L MFI SOHC 4cyl) on the freeway, I felt the engine begin to murmur. I pulled over and pulled the OBD code, and got P0302: cylinder 2 misfire detected.
I popped the hood, and immediately saw that one of the rubber spark plug wire boots was loose (photos for reference).
I tried pushing it back in place over the spark plug, but it would not stay attached. Why might this be? All other wire boots are in place and will not detach even when pulled on lightly, but the boot over cylinder 2 does not want to re-attach to the engine valve cover.
Is this because the boot itself is faulty? Is it because the spark plug is out of position? Should I try removing the spark plug and screwing it back in place? Should I put a hose clamp around the boot? Any suggestions would be greatly appreciated!
Aren’t spark plugs usually 13/16" or is that 21mm? Always just one size larger than a stardard deep socket set has. Be careful to not over tighten spark plugs with an aluminum cylinder head.
I wonder if the metal part inside the plastic or rubber that fits over the spark plug broke. Can you pull it out and see if the end looks different from one of the good ones?
Yeah that was the 70s. I got a metric wrench set in the 90s and it goes all the way up to 19mm, but it lacks 12mm! The 2nd most commonly used size in automotive! Then I got an American wrench set at HF and it lacks 11/32", which is what #8-32 electrical screws and nuts typically use!