mazdaspeed misfiring

Hi all! I wanted to share my experience as it was fairly rare and I found a fix that worked. I bought a new to me 2007 Mazdaspeed3 with approximately 170K miles in August. It was a 1 owner, completely stock car (unicorn, I know). When I bought it, it was having some misfires. I assumed this...

PLEASE HELP ME. about 2 weeks ago i was driving around with my pops when suddenly my car had started misfiring bad. wasn’t doing no pulls or anything, just normal driving. I limped it back home and started diagnosing. swapped coil packs, nothing. swapped spark plugs nothing. (forgot to mention i...