My car has a vibration like a miss at idle. I get NO SES light at all, so I figured it has to be something minor. Car has 65k on it.

I have done the following to try and correct it:

Spark plug swap (factory to NGK-TR55's gapped to .055)
Spark plug wire swap (factory to Taylor 409 10.4mm)
Fuel filter (factory to WIX)
Cleaned throttle body and MAF out

I was going to change out the PCV valve, but the one at O'Reilly looks to be a different one (for 98-99 models).

Any other suggestions? Mods are in sig. Going to replace K&N with paper filter.

 

Damn PCV valve was clogged up. $2 part fixed it.

 

Where is the PCV valve........i got that little vibration too but figured it was just somethin our cars did, mine isn't that bad though.....mine prolly is normal. I think i'm gonna try it out.

I just noticed u had FLP headers........do u have a problem takin out ur oil drain plug?

 

Look on the passenger side of the TB for a rubber line. It will be behind the TB. Follow that like an inch or two and there it is. It is like an in-line filter. You will take the short rubber hose off and then pull the pcv out. Mine wouldn't even rattle anymore.

I do have FLP headers and love them. At first I did have that problem. But I ended up putting in a shorter drain plug.

 

Where'd u get it? I bought one cuz it was the only size they had that was the same but i'm not sure how long it is compared to the stocker. Comes with a lil gasket. I wanna make sure i got the right size before i go ahead and change the oil cuz i don't wanna deal with the plug again.

 

Here are a couple of pics, should help you out:

http://www.ls1tech.com/forums/attach...chmentid=27513

http://www.ls1tech.com/forums/attach...chmentid=27514

I got mine from O'Reilly's and is made by Fram. It is the same as the corvettes.

 

Thanks man.....gonna change it this week hopefully. The PCV is fine for now.......it's not that bad at all for now.

Hopefully i get to hit the track in a couple weeks.