Pretty peeved with auto zone for having the auto life's as the main plugs for this car if it makes that much of a difference. Went back three times. Originally to get plugs. Then to exchange them once I took them out to change and realized that they were completely different, gave the guy the origin...

Put the original Densos back in and it runs perfectly. I was worried there for a minute, it's surprising that just using an aftermarket plug would mess it up so bad, well lesson learned! Thanks for your help

Is that something that would cause it to mess up this badly? Thank you, I'll be changing in the morning.

I've had my 2009 vibe for a while, it's at 200000 miles and I changed the spark plugs on it and it ran great for about a week, then all of the sudden on my way back from a 2 hour drive, any time I got around 2000 rpm it would jerk really bad like it was having trouble changing gears but only when I ...