Hi,
Recently issues with the GTR under medium to hard boost misfiring had me stumped. Short story is:
- New plugs, OEM gap (1.1mm)
- New plugs, ungapped (0.8mm)
- Replacing ignitor pack.
- Checking for un-metered air. Found another problem here with K&N oil in the airbox. Replaced with paper filter and CRC AFM cleaner on both AFMs.
Net result - better but not fixed. The problem were the coil packs. Popping the boot of the pack showed dirty springs, oxidized ends and soot (?) marks. I bought a second hand set which were in better shape, but here is the secret sauce - dielectric grease. A generous amount of dielectric grease around the "nozzle" part of the coil pack and then where the boot meets pack and it hasn't skipped a beat since! Also, before greasing it up and re-assembling they copped a can of contact cleaner. Anyhow, this is a Liberty forum.
I'm about to swap plugs in the Liberty for the first time. Only having Googled what the coil packs look like, I'm curious if the boot separates from the pack itself? I'm also curious if anyone else here does this? The word "dielectric" returns no results!
How the GTR ran before and after is like chalk and cheese. Beside no misfiring, revving/accelerated smoother, engine sounded smoother and there was less backfiring out the exhaust. If the boot separates from the pack in the Liberty, I'm putting grease on it!
Cheers!