Ive been fighting a misfire in cylinder 6 on my 08 93 aero 2.8 v6 fwd. Ive replaced the coil, sparkplug (gapped at .034), injector, and injector wiring harness. I know im getting spark out of the coul and plug and im not sure where else to look. The problem is mostly persistent but every once in a while it will start and run fine for a few miles. Otherwise its a rough idle with shuddering at acceleration. Having looked through the forums ive seen a few others encounter similar issues that were resolved by what ive already done. Inused ngk plugs and oem coils. Any help would be greatly appreciated as i thought i had it fixed when i replaced the injector harness but problem returned the following day.