Hey guys. I've got an '06 MDX. My check engine light came on and I was having random misfires in all 6 cylinders. I replaced spark plugs and coils, and the problem persisted. I then changes the crank position sensor, which worked for about 1 day, now I'm having random misfires in all cylinders again. Any ideas?
I was having a similar issue. I replaced the EGR valve, but when I took it off, there were fragments of my #6 ignition coil (copper wire) lodged in the valve.
Your issue may be different, not sure.
My #6 plug completely blew out, ignition coil burnt up, and the #5 coil was showing signs of burning up..was all brown.. not sure what would cause plugs to back out,
but I understand valve adjustment seems to be a popular theme here,, dunno.
I replaced the last two ignition coils, 5 & 6 and all 6 plugs (see my post).
Your random misfire is probably unrelated to any of these issues, but I will say, a new EGR valve cleared my random misfire..
Not sure if that helps.