I have a 2000 LS2 3.0L. I have terrible throttle response, and I get the infoamous "P0300 - multiple random cylinder misfire" code. I replaced the plugs with high end platnums and replaced both coil packs, with no positive results. Any suggestions? I''m running out of inexpensive options. smileys/smiley19.gif

what about the wires? Have you tried changing those

it has no wires. The left and right bank coil packs sit right on top of the plugs. that would have been easy.

oh oops my bad. Didnt know they came with a CoP setup.

I know this sounds stupid but the gaps on the plugs are correct right, because sometimes these "pregapped" plugs arent even correct

Any other ideas? anyone?