Well I finally got around to changing my spark plugs. Turns out the previous owner had platinum's in it and they were pretty nasty. It was pretty easy to change them even the passenger side rear wasn't bad at all I just used two 3" extensions and a flex head socket wrench and it came right out with no trouble. The pain in the *** for me was after installing the new plugs the plug socket would get stuck & not come out, happened on 8! Had to climb up a grab it with a pair of needle nose pliers to pull it out.
So prior to changing my plus I had a fluctuating low idle. I changed the tps sensor, cleaned the intake, & the other sensor which I can't remember what it's called at the moment, but the problem persisted. I just assumed it was the plugs, and the plugs were pretty bad. While I was in there I noticed one of the vacuum connectors was dry rotted & cracked. so I replaced it.
So far so good, runs & idles like a champ. So before you go replacing sensors take a minute to check the vacuum connectors and you might save yourself a few bucks!