So I just changed out all 6 plus and replaced them with NGK Iridium IX plugs. The car start up fine but idles rough and the check engine light came on. I checked all the connections and bolt everything is tight, I'm not sure what is wrong.

 

Likely a bad coil, but anything is just a guess until you get the code(s) read.

 

Good news! I went back and triple checked everything and the rear passenger plug for the coil pack was loose. Now it runs perfect =) On a side note, changing the three rear plugs was a b*tch!

 

Glad you got it figured out. And yeah, the rear bank is a real pain/

 

there are several tips in the diy on how to make the rears much eaiser

for those about to do the job:
a 3 and 6 inch extensions, plus a real spark plug socket are the way to go,,
slip the tool in by sections-- and there is even a bump in the firewall on pass side for your hand to fit with ratchet!

 

good thing it was an easy fix.. luckily i had no problems whatsoever with the rear spark plugs.. i guess that could be coz of my small filipino hands that can fit into tight spaces.. lol

 

come do my 105!
I like the few remaining layers of skin on my hands... after too many years of working on cars~

 

HIGH FIVE!!!! When i was changing my plugs i was thinking the same thing. Plus i'm hella skinny too so my arms could really get in there. Just the passenger side rear plug gave me a little more inconvenience than the other 2, still did it tho.