Thread: Cam like idle...

I had my EGR system off my car for about 2 years so I can clean things up and run my SSAC header. Now its time for my beloved California smog test so I install all my vacuum lines and what not. I followed the best I could from the FSM but I'm still getting a S4 cam like idle.

Anyone have a general idea what area I should go through? Like the vacuum hoses coming off the manifold to the intake tube?


I know its a pretty vague post but maybe some feller has an idea.

Oh I have a high port SR

vacume leak just recheck the lines maybe u missed a clamp

check all your vacuum lines make sure they have solid connections, check the vac lines for any cracks.

ive all is well check your spark plugs for any fouling or excess carbon build up in any 1 particular cylinder and get back to us.

I'm not entirely sure where all these vacuum lines go from the vacuum gallery. i colored them to try to make it a little easier. also i circled an area where I'm not sure if that vacuum line is a part of the idle and what not.

You might want to clean the AAC while you are at it

mike, this may sound dumb, but are you sure youre running on all 4 cyls.

yeah I'm pretty sure the car is using all 4 cylinders but I can check and make sure.

I did drive my car from my father's house back to my house. It drives and sounds pretty normal, just when the car is idling at a stop light it will drop down in RPMs then the motors idles up and down. The motor wont die though it just keeps running.

Blah! I fixed it......ended up not hooking up the vacuum line to the throttle body :/

noob! lol